Let us cleanse ourselves from all filthiness of the flesh and spirit

2 Corinthians 7:1
Therefore, having these promises, beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God.

A simple exhortation by Paul but most followers of Yshua still had trouble in perfecting. Consider the different parts of the sentence:
i) having these promises - refers to the previous chapter where God promises to be our Father and we become His sons and daughters.
ii) beloved - clearly we are the beloved of God.
iii) cleanse ourselves from all filthiness of the flesh and spirit - something that we must do
iv) perfecting in holiness in the fear of God - our ultimate goal

The thing for us to do is to cleanse ourselves so that we can move towards holiness. Yet many of us struggle because we still have the carnal nature. However, our closeness to God must increase and our carnal selves must decrease. To achieve this, we must abandon our own will because it mostly aims to satisfy our flesh and spirit. Instead, follow our Lord Yshua, who only follow His Father's will - not our own will - only this kind of submission will we be victorious in our battle to cleanse ourselves.