John Gill Commentary Ezekiel 16:62

"And I will establish my covenant with thee; and thou shalt know that I am Jehovah;" — Ezekiel 16:62 (ASV)

And I will establish my covenant with you (See Gill on Ezekiel 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 you shall know that I [am] the Lord ; a covenant keeping God; true and faithful to my promises, and able to make them good: this is a principal blessing of the covenant of grace, to know the Lord, (Jeremiah 31:34) .