1) Where and why infants ?
A: From Scripture
Matthew 28:19 Infants are a part of "
all nations" and, therefore, are included among those Jesus commands to be baptized.
Acts 2:38,39 Infants are a part of: "Repent and be baptized,
every one of you,"
--------------- Just as the promise is:
The promise is for you and your children and for all who are far off for all whom the Lord our God will call.”
Why include infants?
Psalm 51:5 Surely I was sinful at birth, sinful from the time my mother conceived me.
Ephesians 2:3 All of us also lived among them at one time, gratifying the cravings of our flesh and
following its desires and thoughts.
Like the rest, we were by nature deserving of wrath.
John 3:5,6 Jesus answered, “
Very truly I tell you, no one can enter the kingdom of God unless they are born of water and the Spirit, Flesh gives birth to flesh, but the Spirit gives birth to spirit."
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2) The word "baptize" in Greek as used in New Testament times, was not limited to just immersion. It also means "to apply water in various ways: immerse, wash, pour, or sprinkle"
Mark 7:3,4 ---- the last word used in the Greek in 7:4 is κλινῶν (
klinōn) ---
- couches for dining
- utensils
There is no reason to believe that the Pharisees and all the Jews immersed the couches as they observed many other traditions.