Deuteronomy 16:21
Do not set up any wooden Asherah pole next to the altar you will build for the LORD your God,
What it says
Israel must not set up a wooden Asherah pole beside the altar built for the LORD.
What it is doing
This verse forbids mixing the LORD's altar with a rival cult symbol.
In context
21Do not set up any wooden Asherah pole next to the altar you will build for the LORD your God, 22and do not set up for yourselves a sacred pillar, which the LORD your God hates.