In fact, certain things that are spiritual by purpose must also be done physically in addition to faith. According to Romans 10:10, we must confess with our mouth to receive salvation, since believing with our heart by faith is not enough. Similarly, with respect to water baptism, we could not wash our face with a cup of water and say by faith that we have been baptized. Baptism requires that the whole body be physically immersed in water with faith.

Why Should Water Baptism Be By Immersion in Water?
Regardless of the diversity of beliefs on the methods of water baptism, the only acceptable answer must be based on the Bible. In Romans 6:3-5 NASB, the Bible states:
3Or do you not know that all of us who have been baptized into Christ Jesus have been baptized into His death? 4Therefore we have been buried with Him through baptism into death, so that as Christ was raised from the dead through the glory of the Father, so we too might walk in newness of life. 5For if we have become united with Him in the likeness of His death, certainly we shall also be in the likeness of His resurrection.

In baptism, we are taking certain critical steps that symbolize our sharing in Jesus Christ’s experience. By faith, we are taking actions that symbolize that we die, we get buried, and we are raised up in a resurrection. Before we are baptized, we need to understand what we are about to do; we need to be taught the meaning and implication of being baptized. Accepting to be baptized is a commitment to a newness of life. The word “newness” refers to something that has not been before. Therefore, we must commit to the death of our present nature -- the carnal nature. We must also commit to bury that which is dead, and we do this by hope and faith that resurrection from the dead is the evidence of newness of life. Baptism by immersion in water accomplishes this whole process, whereby we are immersed (buried) in the water to signal the death and burial of our carnal nature, and we rise up from the water in symbolism of a resurrection from the dead/grave.
In a baptism by immersion, some people have also experienced an anointing and deliverance from bondage, as some of the unplanned effects.

At RCCG Restoration Springs, we provide short education (Baptismal Class) about water baptism, to believers who want to be baptized, and we do this very often. We also have a facility within our church premises to baptize you by immersion. Ask any usher, minister, member, or the Pastor about how you can attend the short Baptismal Class and be baptized by immersion in water. Everything is free.

I Was Baptized As A Child; Can I Be Baptized Again?
Water baptism could be deficient in a variety of ways. In Acts 19:2-7, certain believers’ baptism were deficient in a certain way, and Apostle Paul made them to be baptized the second time with the proper baptism. So it is possible, and sometimes necessary, to be baptized again with the proper baptism. Moreover, it is preferred that people believe the Gospel of Christ first, as well as understand what baptism is and what they are about to do before they are baptized. It is therefore not a surprise that the Bible has no record of where an infant was baptized.