KJV:
Servants, obey in all things your masters according to the flesh; not with eyeservice, as menpleasers; but in singleness of heart, fearing God:
NASB:
Slaves, in all things obey those who are your masters on earth, not with external service, as those who merely please men, but with sincerity of heart, fearing the Lord.
KJV:
Whom I have sent unto you for the same purpose, that he might know your estate, and comfort your hearts;
NASB:
For I have sent him to you for this very purpose, that you may know about our circumstances and that he may encourage your hearts;
KJV:
But as we were allowed of God to be put in trust with the gospel, even so we speak; not as pleasing men, but God, which trieth our hearts.
NASB:
but just as we have been approved by God to be entrusted with the gospel, so we speak, not as pleasing men, but God who examines our hearts.
KJV:
But we, brethren, being taken from you for a short time in presence, not in heart, endeavoured the more abundantly to see your face with great desire.
NASB:
But we, brethren, having been taken away from you for a short while-- in person, not in spirit-- were all the more eager with great desire to see your face.
KJV:
To the end he may stablish your hearts unblameable in holiness before God, even our Father, at the coming of our Lord Jesus Christ with all his saints.
NASB:
so that He may establish your hearts without blame in holiness before our God and Father at the coming of our Lord Jesus with all His saints.
KJV:
Comfort your hearts, and stablish you in every good word and work.
NASB:
comfort and strengthen your hearts in every good work and word.
KJV:
And the Lord direct your hearts into the love of God, and into the patient waiting for Christ.
NASB:
May the Lord direct your hearts into the love of God and into the steadfastness of Christ.
KJV:
Now the end of the commandment is charity out of a pure heart, and of a good conscience, and of faith unfeigned:
NASB:
But the goal of our instruction is love from a pure heart and a good conscience and a sincere faith.