"He that believeth and is baptized shall be saved" (Mark 16:16).

"Baptism doth also now save us" (1 Peter 3:21).

"Be baptized every one of you in the name of Jesus Christ for the remission of sins" (Acts 2:38).

Every believer is to be baptized (Matthew 28:19); there's no scripture which says it's an option we do only if we feel like it.

Some say "baptism" doesn't include water baptism, but to be baptized according to the word of Acts 2:38-41 we must be water baptized in the name of Jesus; compare Acts 8:15-17. And in Romans 6:3-7, Paul speaks of the necessity of our symbolic burial and death through water-immersion baptism.

To love Jesus is to obey his commandments (1 John 5:3) and to "walk even as he walked" (1 John 2:6). If even Jesus himself was water baptized when he was without sin in order to fulfill all righteousness (Matthew 3:13-15), who are we sinners to think it's optional for us?

The first thing the Apostles had believers do was get water baptized, whether they had received the Holy Spirit already (Acts 10:47, Acts 9:17-18) or not yet (Acts 8:13-17, Acts 19:5-6). Should we do anything less?

Water baptism is an obedient action of faith, something believers should greatly desire as soon as possible (Acts 8:36-39).

Have you been water baptized yet? (Acts 22:16) If not, don't let anyone take it from you (John 10:10), and don't in any way hinder others from being baptized (Matthew 23:13, John 3:5).

Note that when we are baptized in water in the name of the Lord, this is not the same baptism as the baptism of John the Baptist, nor does baptism in the Holy Spirit take the place of water baptism in the name of the Lord, for when Paul came to some Ephesians and found they had been baptized only in the baptism of John the Baptist, he had them baptized in water in the name of the Lord, and then he subsequently laid his hands upon them to receive the baptism of the Holy Spirit (Acts 19:3-6).