Boyd’s Bible Dictionary:
Observed among ancients by feasts (Gen. 40:20; Job 1:4; Hos. 7:5; Matt. 14:6-10).
Concise Bible Dictionary:
The only scriptural notices of birthdays being kept are in reference to Pharaoh (Gen. 40:20); and to Herod Antipas, when John the Baptist lost his life (Matt. 14:6; Mark 6:21). It is thought by some that the sons of Job who feasted “everyone his day” did so on their birth-days (Job 1:4, 13). We do not read that the Israelites had any such custom; and the Preacher says the day of death is better than the day of one’s birth (Eccl. 7:1).