God says to have no other God before Him:
Exodus 20:3You shall not have the gods of others in My presence.
גלֹא יִהְיֶה לְךָ אֱלֹהִים אֲחֵרִים עַל פָּנַי:
Wives kiss their husbands, and people pay homage to kings and reverence authorities. There seems to be some discussion about people bowing to angels as well.
What is the line between worship due only to God, and worship/honor/respects paid to man/authority/ potentates or powers in heaven and on earth?