Gen 6:19–22: two of every kind, and "so he did"

Says 6:19: וּמִכָּל־הָחַי מִכָּל־בָּשָׂר, "and from all the living, from all flesh," שְׁנַיִם מִכֹּל תָּבִיא, "two of all you shall bring," לְהַחֲיֹת, "to keep alive," זָכָר וּנְקֵבָה, "male and female." 6:20 names birds, beasts and creeping things of the ground, each לְמִינֵהוּ, "according to its kind," and שְׁנַיִם מִכֹּל יָבֹאוּ אֵלֶיךָ, "two of all shall come to you," לְהַחֲיוֹת, "to keep alive." These are the kinds of 6:7, where they were to be wiped out. Swete has δύο δύο, "two by two," for the single Hebrew "two." 6:21 adds food, מִכָּל־מַאֲכָל, "of all food," לְאָכְלָה, "for food." 6:22 closes וַיַּעַשׂ נֹחַ, "and Noah did," כְּכֹל אֲשֶׁר צִוָּה אֹתוֹ אֱלֹהִים, "according to all that God commanded him," כֵּן עָשָׂה, "so he did" ("So Noah did everything precisely as God had commanded him," BSB). The MT marks a break after 6:22.

Says Heb 11:7: Noah "in godly fear built an ark to save his family."