Psalms 136:21

And gave their land for an heritage,.... This was taken away from them and their subjects by the Lord, who has the disposing of kingdoms, and given to another people, for an inheritance;

for his…

To him which smote great kings - On this passage see the notes at Psa 135:10-12. There is little difference in the two places, except that here the statement is divided by the refrain, “For his mercy…

The great things God for Israel, when he first formed them into a people, and set up his kingdom among them, are here mentioned, as often elsewhere in the psalms, as instances both of the power of God…

Jehovah the Giver of the promised land. Cp. Psa 135:10 ff.