Most things in life that need to be done--pay the bills, paint the house, change the oil in the car--will allow for a few "tomorrows" before they absolutely have to be done. Why? Because if you die before you get the house painted, it will be an inconvenience for someone else, but not the end of the world. But there are other things in life that don't allow for such putting off since they have eternal ramifications. Most importantly is one's own decision regarding Christ. Hebrews 9:27 says we die and then comes the judgment--there are no tomorrows, do-overs, mulligans, or second chances when it comes to salvation.
You can survive if you procrastinate about some things. But putting off a decision about Christ is not one of them.
Pride is the devil's dragnet, in which he takes more fish than in any other, except procrastination. -C. H. Spurgeon
For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee: behold, now is the accepted time; behold, now. 2 Corinthians 6:7 KJV