Shemot 13:13-19 OJB

13 And every firstling of a he-donkey thou shalt redeem with a seh; and if thou wilt not redeem it, then thou shalt break its neck; and kol bechor adam among thy banim shalt thou redeem.

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.

17 And it came to pass, when Pharaoh had let the people go, that Elohim led them not through the derech of the eretz of the Pelishtim (Philistines), although that was near; for Elohim said, Lest perhaps the people change their mind when they see milchamah, and they return to Mitzrayim;

18 So Elohim led HaAm about, through the derech of the midbar of the Yam Suf; and the Bnei Yisroel went up out of Eretz Mitzrayim ready for battle.

19 And Moshe took the atzmot Yosef with him; for Yosef had made the Bnei Yisroel swear unconditionally, saying, Elohim will surely visit you; and ye shall carry up my atzmot away from here with you.