Psalm 105:10
and confirmed the same to Jacob for a statute, to Israel for an everlasting covenant,
Genesis 17:7-8
And I will establish my covenant between me and thee and thy seed after thee throughout their generations for an everlasting covenant, to be a God to thee and to thy seed after thee.
Genesis 28:13-15
And, behold, LORD stood above it, and said, I am LORD, the God of Abraham thy father, and the God of Isaac. The land on which thou lay, to thee I will give it, and to thy seed.
2 Samuel 23:5
Truly my house is not so with God. Yet he has made with me an everlasting covenant, ordered in all things, and sure. For it is all my salvation, and all [my] desire, though he does not make it to grow.
Hebrews 13:20
Now the God of peace, who brought up from the dead the great shepherd of the sheep by the blood of an eternal covenant--our Lord Jesus--