tnHeb “And if redeeming [infinitive absolute] he redeems it [finite verb].” For the infinitive absolute used to highlight contrast rather than emphasis see GKC343§113.p. The referent of “he” (the person who made the vow) and “it” (the animal) have both been specified in the translation for clarity.
14
tnHeb “on,” meaning “on top of, in addition to” (likewise in v. 15).