6 I have applied all these things to myself and Apollos for your benefit, brothers,  that you may learn by us not to go beyond what is written, that none of you may be puffed up in favor of one against another. 7 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? (1 Corinthians 4:6-7 (ESV)
If then you received it, why do you boast as if you did not receive it?
Salvation is a gift, and so is everything that comes along with it. Everyone is given different gifts. Sometimes people are tempted to boast about the gifts they are given, as if it is some great accomplishment. When a gift is being used in such a way as to build yourself up at the expense of someone else it is being abused. This is what Paul has to say about that matter. This is something that applies to all of us. What matters is the gift of salvation, and all our other gifts should be used in such a way that they work toward the salvation of others, that is in service to the whole church.