שָׁבַע
From LSJ
πάντες γὰρ οἱ λαβόντες μάχαιραν ἐν μαχαίρῃ ἀπολοῦνται → all they that take the sword shall perish with the sword
English (Strong)
a primitive root; propr. to be complete, but used only as a denominative from שֶׁ֫בַע; to seven oneself, i.e. swear (as if by repeating a declaration seven times): adjure, charge (by an oath, with an oath), feed to the full (by mistake for saba`), take an oath, X straitly, (cause to, make to) swear.
