Abraham thy friend - Historically, this is the first use of this remarkable expression, afterward repeated (marginal references). The ground of the expression is to be found principally in Genesis 18:23-33, where Abraham spoke with God as a man with his friend (compare Exodus 33:11).

2 Chronicles 20:8, 2 Chronicles 20:9

The appeal recalls Solomon's prayer (marginal references), which God had formally accepted by sending down fire from heaven to consume the accompanying offering.

Art not thou our God - "Hast not thou, by thy Word, driven out." - Targum.

Art not thou our God,.... In a peculiar sense, not merely as the Creator and Governor of men, but in a covenant relation their covenant God and Father:

who didst drive out the inhabitants of the land before thy people Israel; the seven nations of Canaan, to make way and room for Israel:

and gavest it to the seed of Abraham thy friend for ever? made a deed of gift of it to them, and settled it on them till the coming of the Messiah, and that as an instance of love and friendship to Abraham; and wilt thou therefore suffer it to be taken from his seed?

Art not thou our God, who didst drive out the inhabitants of this land before thy people Israel, and {d} gavest it to the seed of Abraham thy friend for ever?

(d) He grounds his prayer on God's power, by which he is able to help and also on his mercy, which he will continue toward his, as he has once chosen them and began to show his graces toward them.

20:7 Abraham - To whom thou hast engaged thyself by covenant to be his friend, and the friend of his seed for ever.

who: Heb. thou

20:1-13 In all dangers, public or personal, our first business should be to seek help from God. Hence the advantage of days for national fasting and prayer. From the first to the last of our seeking the Lord, we must approach him with humiliation for our sins, trusting only in his mercy and power. Jehoshaphat acknowledges the sovereign dominion of the Divine Providence. Lord, exert it on our behalf. Whom should we seek to, whom should we trust to for relief, but the God we have chosen and served. Those that use what they have for God, may comfortably hope he will secure it to them. Every true believer is a son of Abraham, a friend of God; with such the everlasting covenant is established, to such every promise belongs. We are assured of God's love, by his dwelling in human nature in the person of the Saviour. Jehoshaphat mentions the temple, as a token of God's favourable presence. He pleads the injustice of his enemies. We may well appeal to God against those that render us evil for good. Though he had a great army, he said, We have no might without thee; we rely upon thee.