Jeremiah 1:9-10 – Then the Lord put out his hand and touched my mouth. And the Lord said to me,
“Behold, I have put my words in your mouth.
[10] See, I have set you this day over nations and over kingdoms,
to pluck up and to break down,
to destroy and to overthrow,
to build and to plant.”

So, God calls Jeremiah (1:4-5). Then He promises Jeremiah that He will be with him in what He has called Jeremiah to do (1:7-8). What we see next is that He follows through and actually does what Jeremiah needs Him to do. Jeremiah’s complaint has been that he does not know what to say or how to speak (verse 7). So God takes him and puts words into his mouth. God calls, God comes, and God equips for what He calls to be done.
Do we believe this is how God works for us as well? We should. There is a call to service and holiness and faithfulness. And God has not asked us for superior gifts and talent. He will supply what we need. He wants faith. He wants us to look up and leave our fears and pride behind us. He wants us to hang on to Him and attempt the things He calls us to without first analyzing to see if it can be done. The only time we need to do that is when we are not sure if this thing is a calling from God. If it truly is, then we go with great confidence. If it is not, then we should hold on to it not one minute longer. What He calls us to He equips us for.
Many Christians get this whole thing all twisted about. They arrogate to themselves great gifts and then seek to explain how it is that God has called them to use them. They use the sovereignty of God to attempt things that are more a reflection of the desires of their own hearts than the call of God upon them.
And how many Christians are into gift analysis? They think they need to find out what their gifts are so that they can use them for the glory of God. They reason that they cannot serve God until they know their gift set. It seems that the more biblical method is to determine what God is wanting from them and then attempt it knowing that if God is really in it then they will have all the gifting they need to accomplish it.