I am astonished that you are so quickly deserting the one who called you by the grace of Christ and are turning to a different gospel –
NIV
I am surprised and astonished that you are so quickly turning renegade and deserting Him Who invited and called you by the grace (unmerited favor) of Christ (the Messiah) [and that you are transferring your allegiance] to a different [even an opposition] gospel.
AMP
I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:
KJV
But even if we or an angel from heaven should preach a gospel other than the one we preached to you, let that person be under God's curse!
NIV
But even if we or an angel from heaven should preach to you a gospel contrary to and different from that which we preached to you, let him be accursed (anathema, devoted to destruction, doomed to eternal punishment)!
AMP
But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
KJV
Which is really no gospel at all. Evidently some people are throwing you into confusion and are trying to pervert the gospel of Christ.
NIV
Not that there is [or could be] any other [genuine Gospel], but there are [obviously] some who are troubling and disturbing and bewildering you [with a different kind of teaching which they offer as a gospel] and want to pervert and distort the Gospel of Christ (the Messiah) [into something which it absolutely is not].
AMP
Which is not another; but there be some that trouble you, and would pervert the gospel of Christ.
KJV
I did not receive it from any human source, nor was I taught it; rather, I received it by revelation from Jesus Christ.
NIV
For indeed I did not receive it from man, nor was I taught it, but [it came to me] through a [direct] revelation [given] by Jesus Christ (the Messiah).
AMP
For I neither received it of man, neither was I taught it, but by the revelation of Jesus Christ.
KJV
I want you to know, brothers and sisters, that the gospel I preached is not of human origin.
NIV
For I want you to know, brethren, that the Gospel which was proclaimed and made known by me is not man's gospel [a human invention, according to or patterned after any human standard].
AMP
But I certify you, brethren, that the gospel which was preached of me is not after man.
KJV
Paul, an apostle – sent not with a human commission nor by human authority, but by Jesus Christ and God the Father, who raised him from the dead –
NIV
PAUL, AN apostle--[special messenger appointed and commissioned and sent out] not from [any body of] men nor by or through any man, but by and through Jesus Christ (the Messiah) and God the Father, Who raised Him from among the dead--
AMP
Paul, an apostle, (not of men, neither by man, but by Jesus Christ, and God the Father, who raised him from the dead;)
KJV
Am I now trying to win human approval, or God's approval? Or am I trying to please people? If I were still trying to please people, I would not be a servant of Christ.
NIV
Now am I trying to win the favor of men, or of God? Do I seek to please men? If I were still seeking popularity with men, I should not be a bond servant of Christ (the Messiah).
AMP
For do I now persuade men, or God? or do I seek to please men? for if I yet pleased men, I should not be the servant of Christ.
KJV
I was advancing in Judaism beyond many of my own age among my people and was extremely zealous for the traditions of my fathers.
NIV
And [you have heard how] I outstripped many of the men of my own generation among the people of my race in [my advancement in study and observance of the laws of] Judaism, so extremely enthusiastic and zealous I was for the traditions of my ancestors.
AMP
And profited in the Jews' religion above many my equals in mine own nation, being more exceedingly zealous of the traditions of my fathers.
KJV