For by the grace given to me I say to everyone among you not to think of himself more highly than he ought to think, but to think with sober judgment, each according to the measure of faith that God has assigned. Romans 12:3
Paul is here speaking with apostolic authority to urge the Roman Christians to humility. The phrase “the grace given to me” in verse is parallel to the phrase “the grace given to us” in verse 6. Paul had the gift of apostleship to which he is now appealing. Instead of prideful thinking, we are to think of ourselves correctly (“with sober judgment”) based on the fact that God has given to each a measure of faith.
This is not, as some argue, a statement that all human beings have the gift of saving faith. This is instead a statement that each of the Roman believers have been giving a certain amount (“measure”) of faith. All those who have “saving faith” are saved! Those who are not saved do not have “saving faith”. The faith spoken of in verse 3 may be related to our gifts described in the following verses.
There are two reasons that this statement should stifle pride in our lives. First, whatever we have has been given to us from God. As Paul said in 1 Corinthians 4:7 states:
For who sees anything different in you? What do you have that you did not receive? If then you received it, why do you boast as if you did not receive it?
Now there are varieties of gifts, but the same Spirit;  and there are varieties of service, but the same Lord;  and there are varieties of activities, but it is the same God who empowers them all in everyone.
Being humble does not mean you cannot recognize the giftedness that God has given you. In fact, part of thinking “with sober judgment” about who we are involves a conscious recognition of our own spiritual gifts.
Therefore, we shouldn’t go around with head hung low bemoaning the fact that we can’t do anything. Instead, Paul is saying that we should not think any higher or lower than we ought. We’re no better than any other believer, since we have all been given whatever gifts we possess. But we do have gifts that should be recognized and used for the edification of the body.