Marketing God.5. Do not bring unsaved people into the churches.

Churches are to edify saved people, not to convert the unsaved. Bringing in unsaved people distracts from the church’s purpose and wastes precious resources. So much thinking, time, effort, energy, money, etc. is spent on getting unsaved people to attend church activities.

In addition, and worst of all, it puts "leaven" or "yeast" into the church. Leaven in the Bible always represents evil. And leaven grows and grows invisibly.

1 Corinthians 5:6-7B KJV

[6] Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump?

[7] Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened.

Galatians 5:9 KJV

[9] A little leaven leaveneth the whole lump.

A little leaven. It tends to ruin God’s children, those who are saved.