How would you live when there are only 5 years left in your life? Or if you are dying tomorrow... and you have to see God and be responsible for your life to this moment. What if God is judging you that you should go to hell instead, as you have not clearly seen your sins and therefore not NEED Jesus, by heart, to die for you and rebuild your relationship with God? If it does happen, would you be like "No please I have not even 'started' my life... I have been preparing for it, and I see I have so many resources which I can make great use of in my life... but I just have not been ready to start", or "God You have not given me enough time to figure out my life before I seek You" or "You have not given me enough chances to be changed by Your Holy Spirit"??? And God would answer "No I have already given you all that are more than enough"... Would you feel so unfair and mistreated?
Do you have control of your life? No, we all cannot extend even one minute of our life. Yet we never know when our 'ending' is. Do you still think you have time to think over this serious matter of relationship with God, as it is a long term matter? It is URGENT and IMPORTANT. It determines who we are, so we can start living our life according to our identity. It is where our life really begins, but not the "serious thinking-through" before the life. We need to take the courage to start, and learn to give up sovereignty and let God do His work to make us be more like Him. While many of the people I treasure still hesitate to walk onto this path, although they know inside that they eventually will follow God... This is my genuine sharing - sometimes we just need a childlike and pure and simple heart, to just accept the gospel and find out the evidence of the truth as you walk along. Relationship with God is about walking out, not about thinking through. It may seem to be the stupidest and least serious action in life, but it is by this can you stop trying to be smart, and can you see the great wisdom of God and His words.