NET
6 I said, “During the night I will remember the song I once sang; I will think very carefully.” I tried to make sense of what was happening.
Darby
6 I remember my song in the night; I muse in mine own heart, and my spirit maketh diligent search.
KJV
6 I call to remembrance my song in the night: I commune with mine own heart: and my spirit made diligent search.