Psalm 77:7 Meaning

5I have considered the days of old, the years of ancient times.

6I call to remembrance my song in the night: I commune with mine own heart: and my spirit made diligent search.

7Will the Lord cast off for ever? and will he be favourable no more?

8Is his mercy clean gone for ever? doth his promise fail for evermore?

9Hath God forgotten to be gracious? hath he in anger shut up his tender mercies? Selah.