The gospel is simple: ‘This is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent.’ Easy to believe, hard to bow to God’s ways and authority. ‘Except ye be converted, and become as little children, ye shall not enter into the kingdom of heaven.’ A child is straightforward, insistent, trusting.
‘If my people, which are called by my name, shall humble themselves.. I will forgive their sin [of independence], and will heal their land.’ In the Cross, Christ revealed both the heart and judgment of God. ‘If we love one another, God dwells in us, and his love is perfected in us.’ A child needs no evidence.
‘I write unto you little children, because your sins are forgiven you for his name’s sake.’ Redemption in Christ lays the groundwork for us to turn to God. Trusting God is a steady, straight, often rocky walk with God. He purposes difficulties so that we lean the harder on him. God will slowly turn our steps to himself (see Phil 2:13).
Do you need evidence in order to believe someone?
Edit: R&I ~ D,BM