Mark 10:  And they were exceedingly astonished, and said to him, “Then who can be saved?”  Jesus looked at them and said, “With man it is impossible, but not with God. For all things are possible with God.”
The disciples asked a question that was honest but filled with self-doubt and worry. ‘Then who can be saved?’ is the worrisome question asked as they watched a ‘better candidate’ for salvation walking away sad. They expected the first part of Jesus’ reply ‘With man it is impossible’. They didn’t expect the second part ‘For all things are possible with God.’ Sometimes when we are expecting certain outcomes we can close ourselves off to anything but that. We don’t wait for anything different. If these men hadn’t heard the second part of that sentence they would have also went away sad (like the rich young man).
In order for us to receive all the benefits of our salvation we must learn to wait for it…wait for God to provide…wait for God to show up…what for God to give us the good news after we have dwelt upon the bad news. A big enemy of assurance is our impatience and our focus upon the expected negative outcomes.
Here is a great promise for you to stick to the problem of not ‘waiting for it’ found in Isaiah 40:  but they who wait for the LORD shall renew their strength; they shall mount up with wings like eagles;they shall run and not be weary; they shall walk and not faint.
Are you waiting upon The Lord or have you given in to the impossibilities of life. We serve a God of supernatural possibilities but we must be in position to receive and serve or we may miss it.