Because there is a physical resurrected body, how does cremation work into this?
This is a great question! However, there is not a perfect answer. Some people choose cremation because the remains are portable, while others choose cremation because it is simply much less expensive than traditional burial. The Bible does not forbid cremation, but there are several factors to consider before making a decision between cremation and traditional burial:
The significance of the human body - We must remember the following about the significance of our bodies: (1) Our bodies are the temple of the Holy Spirit; (2) Christ died to purchase us; (3) Our bodies are God’s possession, not our own; (4) Our bodies are meant for God’s glory. The human body is significant and intended for God’s glory, so we should always treat it that way, with respect and care.
The meaning of fire - Biblical references to the relationship between fire and the human body generally prove to connote destruction (Hebrews 9:27; Matthew 5:22; James 3:6; Matthew 10:28). Although the Bible typically relates the relationship of the human body and fire with Hell, Scripture still does not forbid cremation--however, this may provide reason for some to avoid cremation.
God’s role in the resurrection - Whether a person is cremated or buried, we must not lose sight of the fact that God knows how to raise our bodies. John 5:28-29 says: “28 Do not marvel at this, for an hour is coming when all who are in the tombs will hear his voice 29 and come out, those who have done good to the resurrection of life, and those who have done evil to the resurrection of judgment.” Scripture gives us the promise of a new body, regardless if a person drowned in the ocean, burned in a fire, was buried in the ground, or cremated after death. God’s power is supreme, and we must trust His Word to be true. (Also see 1 Corinthians 15:35-54 and Philippians 3:20-21).