Genesis 18:1,4
And the LORD appeared to him in the plains of Mamre: and he sat in the tent door in the heat of the day;
Torrey's Topical Textbook—AKJV

Judges 4:5
And she dwelled under the palm tree of Deborah between Ramah and Bethel in mount Ephraim: and the children of Israel came up to her for judgment.
Torrey's Topical Textbook—AKJV

1 Samuel 22:6
When Saul heard that David was discovered, and the men that were with him, (now Saul stayed in Gibeah under a tree in Ramah, having his spear in his hand, and all his servants were standing about him;)
Torrey's Topical Textbook—AKJV