Baptize How

Does baptism mean only immersion? In the Bible it can mean wash (Mark 7:4; Luke 11:38; Acts 22:16), Israel passing through the Red Sea (1 Corinthians 10:1-4), and Jesus’ suffering and crucifixion (Mark 10:38). When Jesus and the Ethiopian eunuch were baptized, they came up out of, or up away from the water. That could be ankle-deep water and coming up a bank. This does not prove immersion (Matthew 3:16, Mark 1:10 & Acts 8:38-39). Was the baptism of fire pictured in tongues of fire on the head (Acts 2)? The mode is not as important as the act of baptism (Acts 2:38).