Words from Warren Wiersbe, speaking about our hearts:
An enlarged heart, in the physical sense, is dangerous. But spiritually speaking, an enlarged heart can be a blessing. "I will run in the way of Your commandments, for You shall enlarge my heart" (v. 32). If you have an enlarged heart physically, you don't do much running. But if you have an enlarged heart spiritually, you are ready to walk and run with the Lord and accomplish His purposes. When an athlete is running, he is on a path and has a goal in mind, which gives him the energy to continue. That's what God wants for us today. He has a goal for us to reach and a path for us to follow. And He gives us His strength through His Word. What does it mean to have an enlarged heart? First, an enlarged heart is open to God's truth. It's a heart that's honest and says, "Lord, I want Your truth even if it hurts."
Second, an enlarged heart is obedient to God's will. It's a humble heart that says, "O God, what You have said, I will do. I am the servant. You are the master."
Third, an enlarged heart is occupied with God's glory. It's a happy heart. Some people's hearts are small and narrow. They live in their own little world and have their own narrow view. What a wonderful thing it is to grow in grace and the knowledge of truth (II Pet. 3:18)! Our horizons are expanded. We can see what we haven't seen before. We can hear what we haven't heard before. God gives us an enlarged life because we have an enlarged heart.
~Warren Wiersbe (1929-)
