Simple!

Simple!

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.   Whosoever therefore shall humble himself as this little child, the same is greatest in the kingdom of heaven. And whoso shall receive one such little child in my name receiveth me. Matthew 18:3‭-‬5 KJV

Let's put this in context; the Mount of Transfiguration had just happened; great miracles had just been performed, and the disciples must have been feeling pretty special. Maybe that's what led to the question asked a verse earlier: "Who is the greatest in the kingdom of God". Jesus' response is instructive: forget who is the greatest; focus on the state of your heart.

For me to enter into the kingdom of heaven, a sense of entitlement or pride won't cut it. The usual and the normal won't work; a change or conversion must first occur. We claim we are morally upright, but Christ demands much more than physical effort; it has to first impact the heart before it can lead to eternal life. Children are the standard: simple, easy to trust, quick to forget offence and quick to love. They don't read motives or intentions into anything they receive, and if I will qualify for life, I must learn and apply myself to that standard.

Humility like a child is life. It is the greatest attribute and the most appreciated virtue in heaven. Pride cost Lucifer his place in heaven and the standard has not changed. If I will enter, I must earn the qualification, which is child-like simplicity and faith. God loves and accepts the little children; imagine the blessings attached to loving what God loves. His time of favour is here.