Genesis 41:46
Now Joseph was thirty years old when he came before Pharaoh, king of Egypt. And Joseph went out from before the face of Pharaoh and went through all the land of Egypt.
Genesis 37:2
These are the generations of Jacob: Joseph, a boy seventeen years old, was looking after the flock, together with his brothers, the sons of Bilhah and Zilpah, his father's wives; and Joseph gave their father a bad account of them.
1 Samuel 16:21
And David came to Saul, waiting before him: and he became very dear to Saul, who made him his servant, giving him the care of his arms.
Daniel 1:19
And the king had talk with them; and among them all there was no one like Daniel, Hananiah, Mishael, and Azariah; so they were given places before the king.
Numbers 4:3
All those from thirty to fifty years old who are able to do the work of the Tent of meeting.
2 Samuel 5:4
David was thirty years old when he became king, and he was king for forty years,
1 Kings 12:6
Then King Rehoboam took the opinion of the old men who had been with Solomon his father when he was living, and said, In your opinion, what answer am I to give to this people?
1 Kings 12:8
But he gave no attention to the opinion of the old men, and went to the young men of his generation who were waiting before him:
Proverbs 22:29
Have you seen a man who is expert in his business? he will take his place before kings; his place will not be among low persons.
Luke 3:23
And Jesus at this time was about thirty years old, being the son (as it seemed) of Joseph, the son of Heli,
Luke 21:36
But keep watch at all times with prayer, that you may be strong enough to come through all these things and take your place before the Son of man.
Jude 1:24
Now to him who is able to keep you from falling, and to give you a place in his glory, free from all evil, with great joy,