This is Jesus with the little children. You need the simple faith of a child to believe Jesus died on the cross to give us eternal life. (Matthew 18:2)
God loves us so much that He gives us the choice (free will) to say “Yes” to Him and His ways, or “No” to Him. We can soften our hearts or harden our hearts towards Jesus. Let us all “Fight the good fight of faith; take hold of eternal life to which you were called.” (1 Timothy 6:12)