Psalm 105:10

And doth establish it to Jacob for a statute, To Israel -- a covenant age-during,

Genesis 17:7-8

'And I have established My covenant between Me and thee, and thy seed after thee, to their generations, for a covenant age-during, to become God to thee, and to thy seed after thee;

Genesis 28:13-15

and lo, Jehovah is standing upon it, and He saith, 'I am Jehovah, God of Abraham thy father, and God of Isaac; the land on which thou art lying, to thee I give it, and to thy seed;

2 Samuel 23:5

For -- not so is my house with God; For -- a covenant age-during He made with me, Arranged in all things, and kept; For -- all my salvation, and all desire, For -- He hath not caused it to spring up.

Hebrews 13:20

And the God of the peace, who did bring up out of the dead the great shepherd of the sheep -- in the blood of an age-during covenant -- our Lord Jesus,

Treasury of Scripture Knowledge

Summary

And confirmed the same unto Jacob for a law, and to Israel for an everlasting covenant:

Bible References

An everlasting

Genesis 17:7
'And I have established My covenant between Me and thee, and thy seed after thee, to their generations, for a covenant age-during, to become God to thee, and to thy seed after thee;
2 Samuel 23:5
For -- not so is my house with God; For -- a covenant age-during He made with me, Arranged in all things, and kept; For -- all my salvation, and all desire, For -- He hath not caused it to spring up.
Hebrews 13:20
And the God of the peace, who did bring up out of the dead the great shepherd of the sheep -- in the blood of an age-during covenant -- our Lord Jesus,

General references

Genesis 13:15
for the whole of the land which thou are seeing, to thee I give it, and to thy seed -- to the age.
Deuteronomy 5:3
not with our fathers hath Jehovah made this covenant, but with us; we -- these -- here to-day -- all of us alive.
Micah 7:20
Thou givest truth to Jacob, kindness to Abraham, That thou hast sworn to our fathers, from the days of antiquity!
Luke 1:55
As He spake unto our fathers, To Abraham and to his seed -- to the age.'