'Altar to the Lord' in the Bible

Then Noah built an altar to the Lord. He took some of every kind of clean animal and every kind of clean bird and offered burnt offerings on the altar.

From there he moved on to the hill country east of Bethel and pitched his tent, with Bethel on the west and Ai on the east. He built an altar to Yahweh there, and he called on the name of Yahweh.

So Abram moved his tent and went to live near the oaks of Mamre at Hebron, where he built an altar to the Lord.