A little different from the chorus I remember as a kid in sunday school..
Happy day, Happy day, when Jesus washed my sins away
He taught me how to watch and pray and live rejoicing every day
Happy day, Happy day, when Jesus washed my sins away.
Many years later I’m thrilled with this joyful and blessed assurance.
But when the goodness and loving kindness of God our Savior appeared, he saved us, not because of works done by us in righteousness, but according to his own mercy, by the washing of regeneration and renewal of the Holy Spirit, whom he poured out on us richly through Jesus Christ our Savior, so that being justified by his grace we might become heirs according to the hope of eternal life. (Titus 3:4-7 ESV)
May the God of hope fill you with all joy and peace in believing, so that by the power of the Holy Spirit you may abound in hope. (Romans 15:13 ESV)