While it can be difficult to obey God when He calls to do or say something, or to go somewhere, it can be even harder to obey Him when He says "Wait. Wait on Me." Waiting on God, instead of doing it ourselves means we're trusting Him to act. Faith grows through patience, and even though waiting can sometimes be painful, and we might feel like nothing is happening -- nothing is changing -- God IS at work, and He will honor our faithfulness in waiting on Him.