Be ready
We must understand that it's not always "go time"!
It's not always time to preach or to evangelize. The Christian life doesn't work that way.
But, what it is always time for is: to BE ready!
The Bible says in 1 Peter 3:15
But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:
If we are not ready, then when it is "go time", we won't be able to give an answer.
If you're not ready, 'ya better start gettin' ready!