'Seventy' in the Bible

All the descendants of Jacob were seventy people; Joseph was [already] in Egypt.

Then the children of Israel came to Elim where there were twelve springs of water and seventy date palms, and they camped there beside the waters.

Then God said to Moses, “Come up to the Lord, you and Aaron, Nadab and Abihu (Aaron’s older sons), and seventy of Israel’s elders, and you shall worship at a [safe] distance.

Then Moses, Aaron, Nadab, and Abihu, and seventy of the elders of Israel went up [the mountainside],