Keep covenant, and be blessed.

Keep every agreement with the Lord.

These are the words of the agreement which Moses was ordered by the Lord to make with the children of Israel in the land of Moab, in addition to the agreement which he made with them in Horeb.
Deuteronomy 29:1

1)Act 3:25 You are the sons of the prophets, and of the agreement which God made with your fathers, saying to Abraham, Through your seed a blessing will come on all the families of the earth.

Deu 29:9 So keep the words of this agreement and do them, so that it may be well for you in everything you do.

Deu 29:29 The secret things are the Lord our God’s: but the things which have been made clear are ours and our children’s for ever, so that we may do all the words of this law.

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1.Act 3:25 You are the sons of the prophets, and of the agreement which God made with your fathers, saying to Abraham, Through your seed a blessing will come on all the families of the earth.