" If a man die, shall he live again? all the days of my appointed time will I wait, till my change come." Job 14:14. Even though Job was suffering in his body, and all his children had die he did not take out on the Lord. No matter what you are going through in this life never turn your back on God almighty. Amen.
Yes. In book of John: chapter 3 and verses 3-6, gives a great explanation when God was speaking to Nicodemus on being born again.