Hebrews 10:22
we should draw close [to God] with a sincere heart and a fully assured faith, having had our hearts sprinkled from a guilty conscience [See 9:13-14] and having had our bodies washed with clean water [i.e., in our immersion].
John 13:8-10
Peter said to Him, "[No], you will never wash my feet." Jesus replied to him, "If I do not wash you, you will not be able to participate with me [i.e., as a disciple]."
Ephesians 5:26
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].
Titus 3:5
He saved us, not because of any good deeds we ourselves had done, but because of His mercy. [He saved us] through the washing of new birth [Note: This refers to our immersion in water] and the renewing [work] of the Holy Spirit,
1 Peter 3:21
This water prefigured immersion [into Christ], which now also saves you, not by removing dirt from the [physical] body, but [by serving] as an appeal [or, "pledge"] to God for a clear conscience through the raising of Jesus Christ from the dead.
Revelation 1:5-6
[It is also] from Jesus Christ, who is the Faithful Witness [to the truth], the Firstborn from the dead [i.e., the first One raised never to die again], the Ruler of the kings of the world. May there be honor and power forever and ever to Christ, who loved us and released us from our sins by His blood [Note: Some manuscripts say "washed us" since the two words are spelled almost alike].