What will the end be like?

You already know.

The last day, the final day, will involve exactly what today involves.

The decision you are making right now, if unchanged, will be the decision you make on the last day, your last day, in the end, in your end.

What decision?

Do you accept or reject God as God, as your God, as The God?

The end will be like the focus of your first consciously chosen thought for the day, and the last consciously chosen thought before you sleep:  What am I living for, and what am I willing to die for?

Now to die for something may not be as dramatic as martyrdom.  It simply means that you are willing to give up everything to get the thing that you want more than anything.  You do it already.  What do you spend most of your time doing?  Why do you work, even when you don't feel like going to work?  Or what do you persistently do or refuse to do no matter the consequences to you or others?

Whatever it is that you can't and won't give up, you won't give it up in the end, just as you don't give it up when each day ends.

The only difference will be this:  Your decision for that day, the last day, in the end, will be final.