Galatians 2:1-10

Galatians 2:1-10
Then after fourteen years, I went up again to Jerusalem, this time with Barnabas. I took Titus along also. ² I went in response to a revelation and, meeting privately with those esteemed as leaders, I presented to them the gospel that I preach among the Gentiles. I wanted to be sure I was not running and had not been running my race in vain.

This proves my statement yesterday about seeking counsel of church leaders.  Yes we do what God tells us to do, but it's a good thing to check in now and then to make sure you have not strayed.

  ³ Yet not even Titus, who was with me, was compelled to be circumcised, even though he was a Greek. ⁴ This matter arose because some false believers had infiltrated our ranks to spy on the freedom we have in Christ Jesus and to make us slaves. ⁵ We did not give in to them for a moment, so that the truth of the gospel might be preserved for you.

Knowing your gospel will save you from what others add to the gospel.  Which in turn makes their gospel nothing.
 
⁶ As for those who were held in high esteem—whatever they were makes no difference to me; God does not show favoritism—they added nothing to my message. ⁷ On the contrary, they recognized that I had been entrusted with the task of preaching the gospel to the uncircumcised, just as Peter had been to the circumcised. ⁸ For God, who was at work in Peter as an apostle to the circumcised, was also at work in me as an apostle to the Gentiles. ⁹ James, Cephas and John, those esteemed as pillars, gave me and Barnabas the right hand of fellowship when they recognized the grace given to me. They agreed that we should go to the Gentiles, and they to the circumcised. ¹⁰ All they asked was that we should continue to remember the poor, the very thing I had been eager to do all along.

The witness of the Spirit.  These men all served God in a way consistent with the Gospel of Jesus Christ.  They recognized each other's ministry and agreed that each was accomplishing the task God had set before them.

I've seen this among Christians today.  I will meet someone I've never met, but the same Spirit that lives in me lives in them and we recognize one another right away.

God Bless.