Unless we become like little children, we can not enter the kingdom of heaven!

JOH 3: 5 Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.

MAT 18: 3 And said, Verily I say unto you, Except ye be converted, and become as little children, ye shall not enter into the kingdom of heaven.

Holy Ghost:

LUK 11: 13 If ye then, being evil, know how to give good gifts unto your children: how much more shall your heavenly Father give the Holy Spirit to them that ask him? Cliff: Every repented and baptised person is prepared to receive the Holy Ghost.

Jesus says: JOH 3:7 Marvel not that I said unto thee, Ye must be born again.