Genesis 30:41-42

The stronger cattle... when the cattle were feeble. — The words for “strong” and “feeble” are literally bound and covered, so that evidently we have technical terms, which Onkelos and the Syriac explain of the females at the two breeding seasons. The ewes in the spring, after the cold season, are bound, firmly knit together, and the lambs strong and healthy. The other word, covered, seems to mean seeking concealment, hiding away (Job 23:9); and therefore faint, its meaning in Psalms 61:2; Psalms 102, title (Authorised Version, overwhelmed), and Isaiah 57:16 (Authorised Version, fail). The autumn-born lambs are of no great value, and Jacob left them to the course of nature.