"...before you were born I set you apart and appointed you as My prophet to the nations." - Jeremiah 1:5

Although Jeremiah was called as a prophet, he still had to participate with action on his calling. God then instructs Jeremiah to "get up and prepare for action."

"Get yourself ready! Stand up and say to them whatever I command you. Do not be terrified by them, or I will terrify you before them." - Jeremiah 1:17

In other words, he was not to sit down on the job or make any excuses. He was to get up and go.

The call of God does not come with perfect circumstances, but with many challenges to our obedience. There will always be an excuse to not participate with our calling. His Kingdom must come first in our lives because God, Himself, is first and our lives are to reflect who He is.