Then you will remember your ways and be ashamed when you take your sisters, both your elder and your younger, and I give them to you as daughters, but not on account of the covenant with you.
As God, then, shows that he would not be merciful to the Jews for any other reason than through being mindful of his covenant, so now, in return, he informs us what he requires from them, namely, that they should begin to acknowledge how basely they had abjured their pledged fidelity — how unworthily they had despised his law — how impiously obstinate they had...
Here, in the close of the chapter, after a most shameful conviction of sin and a most dreadful denunciation of judgments, mercy is remembered, mercy is reserved, for those who shall come after. As was when God swore in his wrath concerning those who came out of Egypt that they should not enter Canaan, "Yet" (says God) "your little ones shall;" so here.
Commenting on Ezekiel 16:60-63
And I will establish my covenant with thee,.... See Gill on Eze 16:60; and which is repeated for the comfort of the Lord's people, being ashamed upon the remembrance of their evil ways; and to show the certainty of it, as well as because it is a matter of the greatest importance: and thou shalt know that I am the Lord; a covenant keeping God...