Matthew 24:35

heaven and earth may fail, but my words shall never fail.

Luke 1:50

his mercy is on them that fear him, from generation to generation.

Ephesians 1:6-7

to display the glory of his grace, which has render'd us acceptable by his beloved son:

Hebrews 6:18

that by two immutable things in which it was impossible for God to deceive us, we, who have no other refuge to fly to, but to maintain our present hopes,

Treasury of Scripture Knowledge

Summary

For I have said, Mercy shall be built up for ever: thy faithfulness shalt thou establish in the very heavens.

Faithfulness ps 89

Bible References

Faithfulness ps 89

Matthew 24:35
heaven and earth may fail, but my words shall never fail.
Hebrews 6:18
that by two immutable things in which it was impossible for God to deceive us, we, who have no other refuge to fly to, but to maintain our present hopes,