Exodus 34:17-19 Revised Standard Version Catholic Edition (RSVCE)
17 “Your shall make for yourself no molten gods.
18 “The feast of unleavened bread you shall keep. Seven days you shall eat unleavened bread, as I commanded you, at the time appointed in the month Abib; for in the month Abib you came out from Egypt. 19 All that opens the womb is mine, all your male[a] cattle, the firstlings of cow and sheep.