Ephesians 5:26-27
so that He could dedicate her [to Himself], after cleansing her by means of the washing of water [i.e., immersion], accompanied by the word. [Note: "The word" here refers either to a person's profession of faith (See Rom. 10:9) or to the Gospel message (See Rom. 10:17), both of which are associated with immersion].
Hebrews 9:13-14
For if the blood of goats and bulls, and a [burnt] heifer's ashes sprinkled on people who had been [ceremonially] defiled, could purify them so as to make them [ceremonially] clean on the outside,
1 John 1:7
But, if we live in the light [of righteousness] just like God [constantly] lives in the light [of righteousness], we can truly share a relationship with one another and [can know that] the blood of Jesus, God's Son, continues to cleanse [our spirits] from all of our sins.
1 John 1:9
[But] if we confess our sins [to God], He is faithful [to His promise] and righteous [in His judgment], and will forgive us of those sins and cleanse us from all of our wrongdoing.
Revelation 21:3-4
And I heard a loud voice from the throne saying, "Look, the Tabernacle of God [i.e., God's presence] is with people and He will live with them, and they will be His people, and God Himself will be among them {{Some ancient manuscripts add "and will be their God"}}.
Revelation 21:7
The person who has victory [in the Christian life] will inherit these things, and I will be his God and he will be my child.