"To kiss the hand with the mouth" in homage (Job_31:26-27. "If I beheld the sun when it shineth, or the moon, ... and my mouth hath kissed my hand".) The earliest idolatry, that of the sun, moon, and heavenly hosts (Hebrew tsaba), Sabeanism. Laying the hand on the mouth expresses deep reverence and submission (Job_40:4). So "kiss the Son," i.e. adore (Psa_2:12). Portrayed in the sculptures of Persepolis and Thebes. Falling down and worshipping prostrate was the worship subsequently paid to Babylonian idols (Dan_3:5-6). In the sense of divine worship, it is due to God only, and was rejected by angels and saints when offered to them (Luk_4:8; Act_10:25-26; Rev_19:10; Rev_22:9).
Fausset's Bible Dictionary
By Andrew Robert Fausset, co-Author of Jamieson, Fausset and Brown's 1888.