Yahweh is holy and he wants us to be holy like him. “Holy” in the bible means pure. 1 Peter 1:15 - 16; Leviticus 20:7

 

We can be holy in speech by avoiding language and jokes that are immoral. Ephesians 4:31; 5:4; Colossians 3:8

 

We can keep our mind clean by avoiding pornography and gore. Proverbs 5:1-11; Psalm 11:5,  

 

We can keep our bodies clean by bathing regularly and caring for our health. Exodus 19:10; 3 John 1:2

 

This would include avoiding polluting drugs and addiction. 2 Corinthians 7:1 Romans 12:1 Deuteronomy 6:5

 

We can reflect God's holiness by keeping our home and property reasonably tidy and clean. 2 Corinthians 6:3

 

Purity of worship is important to God. John 4:23

 

True Christians would not engage in interfaith prayer or worship. 1 Corinthians 8:5,6