That's not true. Paul didn't enter until after Jesus and the other Apostles were already well established.
Romans 1:1 NLT
This letter is from Paul, a slave of Christ Jesus, chosen by God to be an apostle and sent out to preach his Good News.
1 Corinthians 1:1 NLT
This letter is from Paul, chosen by the will of God to be an apostle of Christ Jesus, and from our brother Sosthenes.
2 Corinthians 1:1 NLT
This letter is from Paul, chosen by the will of God to be an apostle of Christ Jesus, and from our brother Timothy. I am writing to God’s church in Corinth and to all of his holy people throughout Greece.
Galatians 1:1 NLT
This letter is from Paul, an apostle. I was not appointed by any group of people or any human authority, but by Jesus Christ himself and by God the Father, who raised Jesus from the dead.
Ephesians 1:1 NLT
This letter is from Paul, chosen by the will of God to be an apostle of Christ Jesus. I am writing to God’s holy people in Ephesus, who are faithful followers of Christ Jesus.
Philippians 1:1 NLT
This letter is from Paul and Timothy, slaves of Christ Jesus. I am writing to all of God’s holy people in Philippi who belong to Christ Jesus, including the church leaders and deacons.
1 Corinthians 1:10-31 NLT
I appeal to you, dear brothers and sisters, by the authority of our Lord Jesus Christ, to live in harmony with each other. Let there be no divisions in the church. Rather, be of one mind, united in thought and purpose. [11] For some members of Chloe’s household have told me about your quarrels, my dear brothers and sisters. [12] Some of you are saying, “I am a follower of Paul.” Others are saying, “I follow Apollos,” or “I follow Peter, ” or “I follow only Christ.” [13] Has Christ been divided into factions? Was I, Paul, crucified for you? Were any of you baptized in the name of Paul? Of course not! [14] I thank God that I did not baptize any of you except Crispus and Gaius, [15] for now no one can say they were baptized in my name. [16] (Oh yes, I also baptized the household of Stephanas, but I don’t remember baptizing anyone else.) [17] For Christ didn’t send me to baptize, but to preach the Good News—and not with clever speech, for fear that the cross of Christ would lose its power. [18] The message of the cross is foolish to those who are headed for destruction! But we who are being saved know it is the very power of God. [19] As the Scriptures say, “I will destroy the wisdom of the wise and discard the intelligence of the intelligent.” [20] So where does this leave the philosophers, the scholars, and the world’s brilliant debaters? God has made the wisdom of this world look foolish. [21] Since God in his wisdom saw to it that the world would never know him through human wisdom, he has used our foolish preaching to save those who believe. [22] It is foolish to the Jews, who ask for signs from heaven. And it is foolish to the Greeks, who seek human wisdom. [23] So when we preach that Christ was crucified, the Jews are offended and the Gentiles say it’s all nonsense. [24] But to those called by God to salvation, both Jews and Gentiles, Christ is the power of God and the wisdom of God. [25] This foolish plan of God is wiser than the wisest of human plans, and God’s weakness is stronger than the greatest of human strength. [26] Remember, dear brothers and sisters, that few of you were wise in the world’s eyes or powerful or wealthy when God called you. [27] Instead, God chose things the world considers foolish in order to shame those who think they are wise. And he chose things that are powerless to shame those who are powerful. [28] God chose things despised by the world, things counted as nothing at all, and used them to bring to nothing what the world considers important. [29] As a result, no one can ever boast in the presence of God. [30] God has united you with Christ Jesus. For our benefit God made him to be wisdom itself. Christ made us right with God; he made us pure and holy, and he freed us from sin. [31] Therefore, as the Scriptures say, “If you want to boast, boast only about the LORD.”