Answer: Unquestionably, faith is the essence of the Christian life. Faith is exhorted throughout the Bible and is presented as an absolute necessity. In fact, “without faith, it is impossible to please God” (Hebrews 11:6). The entire chapter of Hebrews 11 is about faith and those who possessed it. Faith is a gift from God, as we see in Ephesians 2:8–9 and not something we come up with on our own. All Christians have received the gift of faith from God, and faith is part of the armor of God—the shield with which we protect ourselves from the “flaming arrows of the evil one” (Ephesians 6:16).
The Bible never exhorts us to have “childlike” faith, at least not in so many words. In Matthew 18:2 Jesus says that we must “become as little children” in order to enter the kingdom of God. The context of Jesus’ statement is the disciples’ question, “Who, then, is the greatest in the kingdom of heaven?” (verse 1). In response, Jesus “called a little child to him, and placed the child among them. And he said: ‘Truly I tell you, unless you change and become like little children, you will never enter the kingdom of heaven. Therefore, whoever takes the lowly position of this child is the greatest in the kingdom of heaven. And whoever welcomes one such child in my name welcomes me’” (verses 2–5).
So, as the disciples focus on what constitutes “greatness” in heaven, Jesus provides a new perspective: the way “up” is “down.” Meekness is required (cf. Matthew 5:5). Jesus exhorts the disciples (and us) to seek to possess a childlike modesty in addition to their faith. Those who willingly take the lowest position are the greatest in heaven’s eyes. A young child is destitute of ambition, pride, and haughtiness and is therefore a good example for us. Children are characteristically humble and teachable. They aren’t prone to pride or hypocrisy. Humility is a virtue rewarded by God; as James says, “Humble yourselves before the Lord, and he will lift you up” (James 4:10).
Although faith is not mentioned in Matthew 18:1–5, we know that it isn’t just humility that ushers a person into heaven; it is faith in the Son of God. A humble, unpretentious faith could rightly be called a “childlike faith.” When Jesus wanted to bless the children, He said, “Let the little children come to me, and do not hinder them, for the kingdom of God belongs to such as these. Truly I tell you, anyone who will not receive the kingdom of God like a little child will never enter it” (Mark 10:14–15). How does a child receive a gift? With openness, honesty, and unbridled joy. That type of happy authenticity should be a hallmark of our faith as we receive God’s gift in Christ.
Of course, children are easily fooled and led astray. In their artlessness they tend to miss the truth and be drawn to myths and fantasies. But that is not what is meant by having a childlike faith. Jesus promoted a humble, honest faith in God, and He used the innocence of a child as an example. Emulating the faith of children, we should simply take God at His Word. As children trust their earthly fathers, we should trust that our “Father in heaven [will] give good gifts to those who ask him” (Matthew 7:11).