David Jun preached today on the well-known story of David and Goliath from 1 Samuel 17. Here is an excerpt:
I don't mean that there are two kinds of fights, some easy and some difficult. What I mean is that each fight has two parts: a difficult part and an easy part. The difficult part requires you to put in a lot of effort. The easy part is easy as long as you have won the first, difficult part.
The main point is this: God is my stronghold. If I am in the stronghold, I am already fighting the easy fight. But for this, first, I should occupy the stronghold. This is the difficult part. Why? Because the stronghold is at a very strategic and impregnable point, almost impossible to subdue. Where is it? It is my heart.
It is extremely difficult to occupy my heart and give it to God so that he may be my stronghold. This is the difficult fight. But, once I have won this battle and my heart is steady in God, the stronghold, then the rest is easy.