#the heavens

"the sky" or "the skies"

#and all the living things that filled them

"and all the many living things that are in them" or "and all the crowds of living things in them"

#were finished

This can be made active. AT: "God had finished creating them" (See: [[:en:ta:vol2:translate:figs_activepassive]])

#On the seventh day God came to the end of his work

God did not work at all on the seventh day.

#came to the end of

"had finished" (See: [[:en:ta:vol1:translate:figs_idiom]])

#he rested on the seventh day from all his work

"on that day he did not work"

#God blessed the seventh day

This could mean 1) "God caused the seventh day to produce good results" or 2) "God said that the seventh day was good."

#and sanctified it

"and set it apart" or "and called it his own"

#in it he rested from all his work

"on it he did not work"