This is the former part of the hymn of praise which is prepared for the use of the church, of the Jewish church when God would work great deliverances for them, and of the Christian church when the kingdom of the Messiah should be set up in the world in despite of the opposition of the powers of darkness: In that day thou shalt say, O Lord! I will praise thee. The scattered church, being united into one body, shall, as one man, with one mind and one mouth, thus praise God, who is one and his name one. In that day, when the Lord shall do these great things for thee, thou shalt say, O Lord! I will praise thee. That is,

I."Thou shalt have cause to say so." The promise is sure, and the blessings contained in it are very rich, and, when they are bestowed, will furnish the church with abundant matter for rejoicing and therefore with abundant matter for thanksgiving. The Old Testament prophecies of gospel times are often expressed by the joy and praise that shall then be excited; for the inestimable benefits we enjoy by Jesus Christ require the most elevated and enlarged thanksgivings.

II."Thou shalt have a heart to say so." All God's other gifts to his people shall be crowned with this. He will give them grace to ascribe all the glory of them to him, and to speak of them upon all occasions with thankfulness to his praise. Thou shalt say, that is, thou oughtest to say so. In that day, when many are brought home to Jesus Christ and flock to him as doves to their windows, instead of envying the kind reception they find with Christ, as the Jews grudged the favour shown to the Gentiles, thou shalt say, O Lord! I will praise thee. Note, we ought to rejoice in, and give thanks for, the grace of God to others as well as to ourselves.

1.Believers are here taught to give thanks to God for the turning away of his displeasure from them and the return of his favour to them (Isa 12:1): O Lord! I will praise thee, though thou wast angry with me. Note, Even God's frowns must not put us out of tune for praising him; though he be angry with us, though he slay us, yet we must put our trust in him and give him thanks. God has often just cause to be angry with us, but we have never any reason to be angry with him, nor to speak otherwise than well of him; even when he blames us we must praise him. Thou was angry with us, but thy anger is turned away. Note, (1.) God is sometimes angry with his own people and the fruits of his anger do appear, and they ought to take notice of this, that they may humble themselves under his mighty hand. (2.) Though God may for a time be angry with his people, yet his anger shall at length be turned away; it endures but for a moment, nor will he contend for ever. By Jesus Christ, the root of Jesse, God's anger against mankind was turned away; for he is our peace. (3.) Those whom God is reconciled to he comforts; even the turning away of his anger is a comfort to them; yet that is not all: those that are at peace with God may rejoice in hope of the glory of God, Rom 5:1, Rom 5:2. Nay, God sometimes brings his people into a wilderness that there he may speak comfortably to them, Hos 2:14. (4.) The turning away of God's anger, and the return of his comforts to us, ought to be the matter of our joyful thankful praises.

2.They are taught to triumph in God and their interest in him (Isa 12:2): "Behold, and wonder; God is my salvation; not only my Saviour, by whom I am saved, but my salvation, in whom I am safe. I depend upon him as my salvation, for I have found him to be so. He shall have the glory of all the salvations that have been wrought for me, and from him only will I expect the salvations I further need, and not from hills and mountains: and if God be my salvation, if he undertake my eternal salvation, I will trust in him to prepare me for it and preserve me to it. I will trust him with all my temporal concerns, not doubting but he will make all to work for my good. I will be confident, that is, I will be always easy in my own mind." Note, Those that have God for their salvation may enjoy themselves with a holy security and serenity of mind. Let faith in God as our salvation be effectual, (1.) To silence our fears. We must trust, and not be afraid, not be afraid that the God we trust in will fail us; no, there is no danger of that; not be afraid of any creature, though ever so formidable and threatening. Note, Faith in God is a sovereign remedy against disquieting tormenting fears. (2.) To support our hopes. Is the Lord Jehovah our salvation? Then he will be our strength and song. We have work to do and temptations to resist, and we may depend upon him to enable us for both, to strengthen us with all might by his Spirit in the inner man, for he is our strength; his grace is so, and that grace shall be sufficient for us. We have many troubles to undergo, and must expect griefs in a vale of tears; and we may depend upon him to comfort us in all our tribulations, for he is our song; he giveth songs in the night. If we make God our strength, and put our confidence in him, he will be our strength; if we make him our song, and place our comfort in him, he will be our song. Many good Christians have God for their strength who have him not for their song; they walk in darkness: but light is sown for them. And those that have God for their strength ought to make him their song, that is, to give him the glory of it (see Psa 68:35) and to take to themselves the comfort of it, for he will become their salvation. Observe the title here given to God: Jah, Jehovah. Jah is the contraction of Jehovah, and both signify his eternity and unchangeableness, which are a great comfort to those that depend upon him as their strength and their song. Some make Jah to signify the Son of God made man; he is Jehovah, and in him we may glory as our strength, and song, and salvation.

3.They are aught to derive comfort to themselves from the love of God and all the tokens of that love (Isa 12:3): "Therefore, because the Lord Jehovah is your strength and song and will be your salvation, you shall draw water with joy." Note, The assurances God has given us of his love, and the experiences we have had of the benefit and comfort of his grace, should greatly encourage our faith in him and our expectations from him: "Out of the wells of salvation in God, who is the fountain of all good to his people, you shall draw water with joy. God's favour shall flow forth to you, and you shall have the comfort of it and make use of the blessed fruits of it." Note, (1.) God's promises revealed, ratified, and given out to us, in his ordinances, are wells of salvation; wells of the Saviour (so some read it), for in them the Saviour and salvation are made known to us and made over to us. (2.) It is our duty by faith to draw water out of these wells, to take to ourselves the benefit and comfort that are treasured up for us in them, as those that acknowledge all our fresh springs to be there and all our fresh streams to be thence, Psa 87:7. (3.) Water is to be drawn out of the wells of salvation with a great deal of pleasure and satisfaction. It is the will of God that we should rejoice before him and rejoice in him (Deu 26:11), be joyful in his house of prayer (Isa 56:7), and keep his feasts with gladness, Act 2:46.

Therefore with joy shall ye draw water,.... These words are either an exhortation to others, as the Septuagint and Arabic versions render it, "draw ye"; and so likewise an encouragement to them by her example, or a prophecy that they should do this; that is, apply to Christ for grace, and receive it from him: for by "water" is meant grace, which is compared to it, because it is softening, purifying, fructifying, cooling, and refreshing, and extinguishes thirst; and this is to be "drawn", it is to be come at, though the well in which it is be deep, and not in the reach of everyone; the bucket is faith that it is drawn with, and this is the gift of God; and it is in the exercise of this grace, which requires diligence, strength, and labour, that saints receive from Christ, and grace for grace; and this is exercised in the use of means, by prayer, reading of the Scriptures, and attendance on the word and ordinances, by which faith draws hard, and receives much, and, when it does, it is attended "with joy": salvation itself is received with joy, and so is the Saviour; as also a justifying righteousness, and pardoning grace, and likewise every supply of grace; which joy is of a spiritual kind, is in a way of believing, what a stranger intermeddles not with, and is unspeakable and full of glory:

out of the wells of salvation, or "fountains"; as all the three Persons are; Jehovah the Father, as he is called "the fountain of living water", Jer 2:13 so he is the fountain of salvation; it springs from him, from his everlasting love, his eternal purposes, his infinite wisdom, his sure and unalterable covenant, his free grace in the mission of his Son; and he himself is the God of grace, from whence it all comes, and every supply of it. The Spirit and his grace are called a "well of living water", Joh 4:14 and he also is a well of salvation; it is he that convinces men of their need of it, that brings near this salvation to them, and shows them their interest in it, and bears witness to it, and is the earnest and pledge of it; and he is the author of all that grace which makes them meet for it, and from whom are all the supplies of it by the way. But more especially Christ is meant, who is the "fountain of gardens, and well of living water", Sol 4:15 in whom salvation is, and in no other: the words may be rendered, "the wells" or "fountains of the Saviour" (r), yea, of Jesus; and which are no other than the fulness of grace in him: the phrase denotes the abundance of grace in Christ, much of which is given out in conversion; an abundance of it is received with the free gift of righteousness for justification; and a large measure of it in the pardon of sins, and in all the after supplies, through the wilderness of this world, till the saints come to glory; and which is vouchsafed to a great number, to all the elect angels and elect men, to all the churches, and the members thereof, in all ages; and this always has been and ever will be communicating to them. The Targum is,

"and ye shall receive a new doctrine from the chosen, the righteous;''

or of the righteous; which is true of the doctrine of the Gospel, received by the hands of chosen men, the apostles of Christ. The Jews (s) make use of this passage, in confirmation of the ceremony of drawing of water at the feast of tabernacles; and say (t) it signifies the drawing of the Holy Ghost; that is, his grace.

(r) "de fontibus Salvatoris", V. L.; Vatablus. (s) T. Bab. Succa, fol. 48. 2. & 50. 2. (t) Bereshit Rabba, sect. 70. fol. 62. 3. T. Hieros. Succa, fol. 55. 1.

draw water . . . salvation--an expressive image in a hot country. On the last day of the feast of tabernacles the Jews used to bring water in a golden pitcher from the fountain of Siloam, and pour it, mingled with wine, on the sacrifice on the altar, with great rejoicing. This is the allusion in Jesus' words on "the last day of the feast" (Joh 7:2, Joh 7:37-39). The pouring out of water indicated repentance (Sa1 7:6; compare, as to the Jews' repentance hereafter, Zac 12:10). There shall be a latter outpouring of the Spirit like the former one on pentecost (Joe 2:23).

wells--not mere streams, which may run dry, but ever-flowing fountains (Joh 4:14; Joh 7:38), "Out of his belly (that is, in and from himself)--living water" (Isa 42:18; Psa 84:6; Zac 13:1; Rev 7:17).