KJV: Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord.
NASB: Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your toil is not in vain in the Lord.
KJV: As touching our brother Apollos, I greatly desired him to come unto you with the brethren: but his will was not at all to come at this time; but he will come when he shall have convenient time.
NASB: But concerning Apollos our brother, I encouraged him greatly to come to you with the brethren; and it was not at all his desire to come now, but he will come when he has opportunity.
KJV: I beseech you, brethren, (ye know the house of Stephanas, that it is the firstfruits of Achaia, and that they have addicted themselves to the ministry of the saints,)
NASB: Now I urge you, brethren (you know the household of Stephanas, that they were the first fruits of Achaia, and that they have devoted themselves for ministry to the saints),
KJV: Paul, an apostle of Jesus Christ by the will of God, and Timothy our brother, unto the church of God which is at Corinth, with all the saints which are in all Achaia:
NASB: Paul, an apostle of Christ Jesus by the will of God, and Timothy our brother, To the church of God which is at Corinth with all the saints who are throughout Achaia: