By whom we have received grace and apostleship, for obedience to the faith among all nations, for his name: Romans 1:5"
Apostle Paul was saying that Jesus Christ was responsible for giving grace and the office of ministry.
This calling must be obeyed to give honor and allegiance to the one who called, Jesus Christ of Nazareth. This is not the time, as a Christian, to compare your gift and office of ministry to that of another brother in the faith. Jesus Christ knows all and gives according to His divine wisdom.
What we need to do, as children of God who have been called to these offices, is to explore more about our own calling and ask for more grace to accomplish the task that goes with the calling.
What Christ Jesus is looking for is faithfulness; therefore, let us stop the comparisons, love one another's offices and gifts, and focus on what we have been called to do, Matthew 25:21-23. We should refrain from abandoning the gift and the office for any reason, for Christ Jesus does not entertain excuses, Matthew 25:24-30.
Praise the Lord!