Seventy as 7x10 will express responsibility before God in spiritual or mystical completeness. So in Ex. 24:9, there are 70 elders of the people taken up into the mount. In Num. 11:16, 70 elders are taken to help Moses. In Ezek. 8:11 70 ancients stood before the portraiture on the wall, with their censers; it would seem here to be in abuse of their place.
Gen. 46:27. Seventy souls of the house of Jacob went down into the land of Egypt.
In Judg. 1:7, Adoni-bezek had taken 70 kings captive and ill-treated them.
Judg. 9:5. Abimelech slew 70 sons of his father.
Judg. 9:4. Seventy pieces of silver were given him.
In 2 Kings 10:7, Ahab's 70 sons were put to death at Jehu's command.
Gen. 50:3. Jacob was mourned for 70 days.
2 Chron. 36:21. The land kept Sabbath, desolate, to fulfill 70 years.
Psa. 90:10. The days of our years are 70.
Ex. 15:27. At El im were 70 palm trees.
Dan. 9:24. "Seventy weeks are determined upon thy people."
Isa. 23:15. Tire to be forgotten 70 years.
Luke 10:1. "The Lord appointed other seventy also."