Exodus 30:37

Christian Standard Bible Anglicised

As for the incense you are making, you must not make any for yourselves using its formula. It is to be regarded by you as holy #– #belonging to the Lord.

Cross References

Leviticus 2:3

But the rest of the grain offering will belong to Aaron and his sons; it is the holiest part  of the food offerings to the Lord.

Exodus 29:37

For seven days you must make atonement for the altar and consecrate it. The altar will be especially holy. Whatever touches the altar will be consecrated.

Exodus 30:38

Anyone who makes something like it to smell its fragrance must be cut off from his people.’