Shemot 13:14-16 Orthodox Jewish Bible (OJB)
14 And it shall be when thy ben asketh thee in time to come, saying, Mah zot? (What is this?) that thou shalt say unto him, By chozek yad Hashem brought us out from Mitzrayim, from the bais avadim;
15 And it came to pass, when Pharaoh stubbornly refused to let us go, that Hashem killed kol bechor of Eretz Mitzrayim, both the bechor adam, and the bechor behemah; therefore Ani zovei’ach laHashem (I sacrifice to Hashem) kol that openeth the rechem (womb), being hazecharim (the males); but kol bechor of my banim I redeem.
16 And it shall be for an ot (sign) upon thine hand, and for totafos (ornaments, frontlets, bands, phylactery) between thine eyes; for by chozek yad Hashem brought us forth out of Mitzrayim.