Love is not a feeling by itself. It is an action, based on it, and the knowledge of love that was shown to us, by God, through his Son.

bible.com/bible/100/heb.13.16.NASB1995

The sacrifices of praise coming from the lips of God’s people please Him only when accompanied by loving action (cf. Is 58:6, 7; Jas 1:27; 1Jn 3:18).