Do nothing out of selfishness or conceit, but with humility consider others as more important than yourselves, (4) looking out not only for your own interests but also the interests of others. (TLV)
Nosh: According to this passage, a competitive spirit towards others serving God is prideful and unspiritual. The vaccination against this condition is to think of ministry colleagues and their work as more important than our own. Humility is always a sign of spiritual health and maturity.