Kejadian 1:19

1:19 There was evening, and there was morning, a fourth day.

Kejadian 35:22

35:22 While Israel was living in that land, Reuben had sexual relations with ¹  Bilhah, his father’s concubine, and Israel heard about it.

Jacob had twelve sons:

Kejadian 1:12

1:12 The land produced vegetation – plants yielding seeds according to their kinds, and trees bearing fruit with seed in it according to their kinds. God saw that it was good.

[35:22]  ¹ tn Heb “and Reuben went and lay with.” The expression “lay with” is a euphemism for having sexual intercourse.

[35:22]  sn Reuben’s act of having sexual relations with Bilhah probably had other purposes than merely satisfying his sexual desire. By having sex with Bilhah, Reuben (Leah’s oldest son) would have prevented Bilhah from succeeding Rachel as the favorite wife, and by sleeping with his father’s concubine he would also be attempting to take over leadership of the clan – something Absalom foolishly attempted later on in Israel’s history (2 Sam 16:21-22).