Titus 3:5 Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Spirit

Regeneration:
- Frequency: Once in a lifetime when becoming a priest.
- Done by: Somebody else.
- Extent: Complete body.
- Key verses:

Exodus 29:4 Then bring Aaron and his sons to the entrance to the Tent of Meeting and wash them with water.
Leviticus 8:6 And Moses brought Aaron and his sons, and washed them with water.
Hebrews 10:10 And by that will, we have been made holy through the sacrifice of the body of Jesus Christ once for all.

 

Renewing:
- Frequency: Every time you approach God.
- Done by: Yourself
- Extent:: Hands and feet.
- Key verses

Exodus 30:17 Then the LORD said to Moses, 18 "Make a bronze basin, with its bronze stand, for washing. Place it between the Tent of Meeting and the altar, and put water in it. 19 Aaron and his sons are to wash their hands and feet with water from it. 20 Whenever they enter the Tent of Meeting, they shall wash with water so that they will not die. Also, when they approach the altar to minister by presenting an offering made to the LORD by fire, 21 they shall wash their hands and feet so that they will not die. This is to be a lasting ordinance for Aaron and his descendants for the generations to come."

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Titus 3:4 But when the kindness and love of God our Savior appeared, 5 he saved us, not because of righteous things we had done, but because of his mercy. He saved us through the washing of rebirth and renewal by the Holy Spirit, 6 whom he poured out on us generously through Jesus Christ our Savior, 7 so that, having been justified by his grace, we might become heirs having the hope of eternal life.

4 But when the kindness and love of God our Savior appeared,
→  Timing of salvation.
→ ‘God’ is Father
→ ‘Savior’ is Jesus.

5a he saved us,
→ The main point of verse 4-7.
→ ‘He’ is Father

5b not because of righteous things we had done, but because of his mercy.
→ Based on mercy.
→ ‘His’ is Father

5c He saved us
→ The main point of verse 4-7.
→ ‘He’ is Father

5d through the washing of rebirth and renewal by the Holy Spirit,
6a whom he poured out
→ How it was done.
→ ‘He’ is Father

6b on us generously
→ Who receives salvation

6b through Jesus Christ our Savior,
→ Jesus triggered the event.

7 so that, having been justified by his grace, we might become heirs having the hope of eternal life.
→ The reason it was done.

Rewritten
Titus 3:4 But when the kindness and love of Father Jesus Christ our Savior appeared, 5 Father saved us, not because of righteous things we had done, but because of Father’s mercy. Father saved us through the washing of rebirth and renewal by the Holy Spirit, 6 whom Father poured out on us generously through Jesus Christ our Savior, 7 so that, having been justified by Father’s grace, we might become heirs having the hope of eternal life.

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Loutron
Bath - passive  => 0x in LXX
Washing - active  => 2x in LXX

Laver=Louter in LXX

Ancient church fathers unanimous agree Loutron=Baptism

The use of the aorist tense makes it clear that the washing,  and saved are one time completed events.

Acts 22:16 And now why tarry you? arise, and be baptized, and wash away your sins, calling on the name of the Lord.

1 Peter 1:3 Praise be to the God and Father of our Lord Jesus Christ! In his great mercy he has given us new birth into a living hope through the resurrection of Jesus Christ from the dead,

→ Jesus is our baptism????

"new birth into a living hope"
A uncompleted action. Work in progress ????