Exodus 30:9

You shall not offer any strange incense on this altar, or burnt offering or meal offering; you shall not pour out a drink offering on it.

Leviticus 10:1

Now Nadab and Abihu, the sons of Aaron, took their respective [ceremonial] censers, put fire in them, placed incense on it and offered strange (unauthorized, unacceptable) fire before the Lord, [an act] which He had not commanded them to do.

Treasury of Scripture Knowledge

Summary

Ye shall offer no strange incense thereon, nor burnt sacrifice, nor meat offering; neither shall ye pour drink offering thereon.

General references

Bible References

General references

Leviticus 10:1
Now Nadab and Abihu, the sons of Aaron, took their respective [ceremonial] censers, put fire in them, placed incense on it and offered strange (unauthorized, unacceptable) fire before the Lord, [an act] which He had not commanded them to do.