στηρίζω

[in LXX for סָמַךְ, שׂוּם, etc. ;]

to fix, set fast, make fast: Luk.16:26; τ. πρόσωτον (Eze.6:2 13:17, al.; see Dalman, Words, 30 f.), Luk.9:51. Metaphorical, to confirm, establish: with, accusative, Luk.22:32, Act.18:23, Rom.1:11 16:25, 1Th.3:2 3:13, 2Th.3:3, Jas.5:8, 1Pe.5:10, Rev.3:2; id. before ἐν, 2Th.2:17, 2Pe.1:12.†

(AS)

to fix, set fast, make fast; to confirm, establish