We do not burn incense period. No sage, no "cleansing sprays", no nothing. The practice of burning incense known as "smudging" and is deeply rooted in witchcraft. The Devil inspires witches and other religions to do this because it is in disobedience to God's word. Anyone who practices witchcraft will not enter into heaven (Galatians 5:20-21).
Again, these practices are in opposition to the word of God which is why the Devil uses it to mislead many. As people do these practices they revoke God's protection and God calls this "spiritual whoredome" (Deuteronomy 31:16). The only thing you purge your house of is the protection of God and you replace it with demonic spirits instead. In the Old Testament God commanded the old priests (who were only Levites) to burn incenses to the temple of the Lord. And Christ came to end the old and bring the New Testament when he died on the cross.
You ain't a Levite, and the Old Testament is dead. The only incense that is to be burned is our prayers (Revelation 8:4). Jesus has now made us the "temple" of the Lord, a vessel of his Holy Spirit (1 Corinthians 6:19-20), and in this new "temple" we fill it with our prayers to Jesus Christ.
What About Holy Water?
We also don't use "holy water" at any point in our walk. Holy water is a Catholic tradition based on a misunderstanding of God's word, and to put it plainly, Catholics have no part in Christ and neither does their doctrine. The reason against using holy water is the same as not using sage, it was an old testament mean of holiness that was ended at the cross. Everything in the Old Testament was a physical representation of the spiritual in the New Testament. It foreshadowed the New Testament.
"Therefore do not let anyone judge you by what you eat or drink, or with regard to a religious festival, a New Moon celebration or a Sabbath day. 17 These are a shadow of the things that were to come; the reality, however, is found in Christ."
How To Actually Free Your Home From Evil
Check out this blog post below to learn how to biblically purge your house of all evil for good.