'Mingle' in the Bible

Another angel came and stood at the altar. He had a golden censer, and much incense was given to him, so that he might add it to the prayers of all the saints (God’s people) on the golden altar in front of the throne.

Render to her as also she did render to you, and double to her doubles according to her works; in the cup that she did mingle mingle to her double.