Leviticus 22:27
"When an ox, lamb, or goat is born, it must be under the care of its mother seven days, but from the eighth day onward it will be acceptable as an offering gift to the Lord.
Exodus 22:30
You must also do this for your oxen and for your sheep; seven days they may remain with their mothers, but give them to me on the eighth day.
Leviticus 12:2-3
"Tell the Israelites, 'When a woman produces offspring and bears a male child, she will be unclean seven days, as she is unclean during the days of her menstruation.
Leviticus 19:23-24
"'When you enter the land and plant any fruit tree, you must consider its fruit to be forbidden. Three years it will be forbidden to you; it must not be eaten.
Leviticus 22:25
Even from a foreigner you must not present the food of your God from such animals as these, for they are ruined and flawed; they will not be acceptable for your benefit.'"