Ezekiel 16:62

And I will establish my covenant with thee
(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 thou shalt 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 ) .