[God] has saved us and called us with a holy calling, not according to our works, but according to His own purpose and grace which was given to us in Christ Jesus before time began. 2 timothy 1:9
It's easy to dismiss the call of God as something only for preachers or missionaries or other A-list Christians, but God has called each of us. In one sense, answering the call is fulfilling the purpose God had in mind for us when He saved us. In another sense, it's an expression of our obedience.
The call is unmistakable. (judges 6:22)
Everyone in Scripture knew they had heard from God. Admittedly they may have been reluctant to answer. They may have stalled or delayed. But they knew it was God calling.
The call is according to God's purpose. (2 Timothy 1:9)
God never calls us to busywork. Everything He involves us in is fulfilling His kingdom purposes.
The call leads to being sent out. (mark 6:7)
I've yet to find an example of someone God ordained and equipped who was not immediately put to work. There is no orientation period, no job shadowing, no time to research the pros and cons. Part of the reason for this is that we are sent out in His strength, not ours.
The call often comes in answer to prayer, but usually not our own. (Esther 4)
Israel prayed for deliverance, God calls moses. The people prayed for rescue from Midian, God raised up Gideon. Jesus prayed all night, then called the right guys to be His disciples.
The call comes when God is ready to act. (exodus 3:7,10)
We don't have to wait on God's timing. By the time He has called, it is His timing, and we need to respond.
What has God called you to? How did you respond?