"Pride goeth before destruction, and an haughty spirit before a fall." Proverbs 16:18
If God has called you to a mega ministry, serving a large congregation, or ministering world-wide do it following Him and for His glory. But be on guard, we have seen many ministries and ministers get so "big" that they forgot God. They become self-serving, people-pleasing, full of pride about what they have done, what they are doing and "who" they are.
But to all of us whether we are used in mighty or small ways by God, there is a warning-- we must keep ourselves humble before the Lord. The key to staying humble when God is using you is to "stay little in your own eyes". When God starts enlarging your tents, when He promotes you, when He calls you to do a greater work for Him, don't think more highly of yourself than you should.
Saul was anointed as the first king of Israel. He was head and shoulders taller than the other men. He was anointed by the Prophet Samuel. The Spirit would come upon him. He prophesied. He was used by the Lord. But Saul fell. He disobeyed God. Therefore, God took the kingdom from him. We have the reason why he fell and our answer to keep from falling. "And Samuel said, When thou wast little in thine own sight, wast thou not made the head of the tribes of Israel, and the Lord anointed thee king over Israel?" (1 Samuel 15:17) The answer is-- when God is using you to do His work, stay little in your own eyes. Don't look at yourself as bigger than you are. You aren't the big one, God is.
Have a great day. Stay small in your own eyes when God is using you. (Don't get too big for your own spiritual britches.)