through whom we have received grace and apostleship to bring about the obedience of faith for the sake of his name among all the nations,
Paul declares that we have received apostleship but we are not all apostles. There is a distinction between title and actions. The point of the word apostleship is to identify that we are called because apostle means called. We are not all called to do the same thing because if that were so only one element of kingdom living would be attended to leaving all other needs unattended.
How we come to understand what we are called to do comes by faith and that cannot be identified apart from the Word of God. Knowing His Word will lead us by faith to our own calling.
“To bring about” is a qualifying statement which indicates a thing that happens to us and not necessarily a thing of our own choosing. If we all chose to do what we wanted there would be a large number of needs unfulfilled. Grace given is unmerited and should not be given to only those we deem worthy.
Christ told us not to judge others. Judging others withholds graces that we are given to share and not keep to ourselves as if it were a gift only meant for ourselves. Sharing the love of God is the objective of the command, love one another. Agape love is not ours to be hoarded.
A new commandment I give to you, that you love one another: just as I have loved you, you also are to love one another.
New commandments for a new way for a new purpose that can only be discovered in Christ.
Behold, I am doing a new thing; now it springs forth, do you not perceive it? I will make a way in the wilderness and rivers in the desert.
Do we perceive it? It cannot be perceived without faith, without the Word of Christ.
So faith comes from hearing, and hearing through the word of Christ.
2 Timothy 2:15 Do your best to present yourself to God as one approved, a worker who has no need to be ashamed, rightly handling the word of truth.