Genesis 41:46
Joseph was 30 years old when he began to serve Pharaoh, king of Egypt, by traveling throughout the land of Egypt, independent from Pharaoh's oversight.
Genesis 37:2
This is a record of Jacob's descendants.
1 Samuel 16:21
David went to Saul and began to serve him. Saul loved him very much, and he became his armor bearer.
Daniel 1:19
When the king spoke to them, none of them compared to Daniel, Hananiah, Mishael, or Azariah as they stood before the king.
Numbers 4:3
from 30 years and older through the age of 50 years, from everyone who can enter the service to perform work at the Tent of Meeting.
2 Samuel 5:4
David began to reign when he was 30 years old, and he reigned 40 years.
1 Kings 12:6
while King Rehoboam conferred with his advisors who had worked for his father Solomon during his administration. He asked them, "What is your advice as to how I should respond to these people?"
1 Kings 12:8
But Rehoboam ignored the counsel that his elder advisors had given him. Instead, he consulted the younger men who had grown up with him and who worked for him.
Proverbs 22:29
Do you see a man skilled in his work? He will work for kings, not unimportant people.
Luke 3:23
Jesus himself was about 30 years old when he began his ministry. He was (as legally calculated) the son of Joseph, the son of Heli,
Luke 21:36
So be alert at all times, praying that you may have strength to escape all these things that are going to take place and to take your stand in the presence of the Son of Man."
Jude 1:24
Now to the one who is able to keep you from falling and to make you stand joyful and faultless in his glorious presence,