i.e. the woman; but of her he speaks, Numbers 5:18; or it, i.e. the offering, which is last spoken of, so the feminine gender is put for the masculine or the neuter, of both which we have instances. Before the Lord, i.e. before the sanctuary where the ark was.
Related Commentaries of Numbers 5:16
Numbers 5:16
16 And the priest shall bring her near, and set her before the LORD: