Numbers 5:13

5:13 And a man lie with her carnally, and it be hid from the eyes of her husband, and be kept close, and she be defiled, and [there be] no witness against her, neither she be taken [with the manner];

Numbers 5:28

5:28 And if the woman be not defiled, but be clean; then she shall be free, and shall conceive seed.

Numbers 15:38

15:38 Speak unto the children of Israel, and bid them that they make them fringes in the borders of their garments throughout their generations, and that they put upon the fringe of the borders a ribband of blue: