Judges 6:11,19
And there came an angel of the LORD, and sat under an oak which was in Ophrah, that pertained to Joash the Abiezrite: and his son Gideon threshed wheat by the wine press, to hide it from the Midianites.
Torrey's Topical Textbook—AKJV

1 Kings 13:14
And went after the man of God, and found him sitting under an oak: and he said to him, Are you the man of God that came from Judah? And he said, I am.
Torrey's Topical Textbook—AKJV