The argument here is, you don’t have to understand everything about the nature of the new birth in order to seek and find the Lord. All we need to know is that God is holy and we are sinful and under his judgement, that only Christ’s death on Calvary can deliver us, and that and we need forgiveness and new life. So much of what God will do in us is a mystery. This includes all of the working of the Spirit of God in our hearts and all the changes that take place at conversion in our will, our thinking, our tastes and our desires. Are you afraid of being converted? Trust in God who understands his own work and yield your life to him who best knows how to wash away your guilt and bring you to heaven.
What is in mind is the sort of person who will not come to God unless he has all his questions answered. Such a person says, ‘I have this problem and I have that problem.’ Yes, we are sympathetic to people’s questions and will try to help them understand what they are capable of understanding as unbelievers, but let them not take this to an extreme. Unanswered questions and ignorance over the way that God works are a foolish reason for not seeking him, given our state in this world. Be a person who asks questions, but realise the limits of your capacity to know what God does, otherwise the devil will find it too easy to distract you from ever finally trusting in the Lord. God tells us a great deal, but he does not tell us everything. Do you have questions about the providence of God in the world or about the way he governs the world? It is foolish to refuse to trust God until you have answers to all these questions because even things which are part and parcel of your very existence are beyond your comprehension. Intellectual problems that puzzle us should simply be set aside until after we have trusted in God, because we are not capable of understanding many of these things until the foundation of faith is in place. Even then there is much we will remain ignorant of until we are in glory.