Paul opens this letter by explaining that we as believers in Jesus Christ should not take His grace in vain. Essentially, Jesus died for our sins and made it possible for us to return and live with our Heavenly Father; we should not abuse this grace. We need to be actively engaged in doing good. We need to work hard through our afflictions and trials and learn from them! Paul delivers a wonderfully written piece that we can all live by day to day:
“We then, as workers together with him, beseech you also that ye receive not the grace of God in vain. (For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee: behold, now is the accepted time; behold, now is the day of salvation.) Giving no offence in any thing, that the ministry be not blamed: But in all things approving ourselves as the ministers of God, in much patience, in afflictions, in necessities, in distresses, In stripes, in imprisonments, in tumults, in labours, in watchings, in fastings; By pureness, by knowledge, by longsuffering, by kindness, by the Holy Ghost, by love unfeigned, By the word of truth, by the power of God, by the armour of righteousness on the right hand and on the left, By honour and dishonour, by evil report and good report: as deceivers, and yet true; As unknown, and yet well known; as dying, and, behold, we live; as chastened, and not killed; As sorrowful, yet alway rejoicing; as poor, yet making many rich; as having nothing, and yet possessing all things.” (2 Corinthians 6:1-10)
Paul then reminds the believers in Christ, to be around people that share their beliefs. Light and darkness should not coincide, righteousness cannot fellowship with unrighteousness.
“Be ye no unequally yoked [attached, coupled] with unbelievers: for what fellowship hath righteousness with unrighteousness? And what communion hath light with darkness?” (2 Corinthians 6:14)
Essentially, Paul is telling us that we need to choose our friends and our spouse carefully that we might; “…come out from among them, and be ye separate…” (2 Corinthians 6:17) Separate from the world, but still living in the world. We should never cave into the temptations of the world, just because it is being “accepted”. If we do these things, Paul promises that God; “…will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.” (2 Corinthians 6:18)