a serpent, Mt. 7:10; 10:16; an artificial serpent, Jn. 3:14; used of the devil or Satan, Rev. 12:9, 14, 15; 20:2; met. a man of serpentine character, Mt. 23:33
originally a ptcp (aor act ptcp nom sg neut) from ὀφειλω, used in NT as an interj. to introduce a wish that cannot be attained, O that! Would that! 1 Cor. 4:8; 2 Cor. 11:1; Gal. 5:12; Rev. 3:15*
to owe, be indebted, Mt. 18:28, 30, 34; to incur a bond, to be bound to make discharge, Mt. 23:16, 18; to be bound or obliged by what is due or fitting or consequently necessary, Lk. 17:10; Jn.