What is Baptism?

1 Corinthians 1 Corinthians 15 Romans Romans 6 Luke Luke 11 Mark Mark 7 Matthew Matthew 3 Acts Acts 8 2 Kings 1 Corinthians 10 Isaiah Mark 10 Hebrews 2 Kings 5 Colossians Acts 19 Revelation Isaiah 21 Titus Hebrews 6 Luke 12 Colossians 2 Revelation 19 Hebrews 10 Matthew 23 Revelation 16 Titus 3 Romans 8