ἰδού,
[in LXX chiefly for הִנֵּה,]
prop. imperat. 2 aor. mid. of ὁράω, used as a demonstrative particle, with frequency much greater in LXX and NT than in cl. (v. M, Pr., 11),
lo, behold, see: Mt 10:1611:813:3, Mk 3:32, Lk 2:48, I Co 15:51, Ja 5:9, Ju 14, Re 1:7, al.; after gen. absol., Mt 1:202:1, 1312:46, al.; καὶ ἰδού, Mt 2:9 (and freq.), Lk 1:2010:25, Ac 12:7, al.; in elliptical sentences, taking the place of copula or predicate (like הִנֵּה in Heb.), Mt 3:17, Lk 5:1222:31, 47, Ac 8:27, 36 al.