Last time we first find Paul mentioned in Acts at the false accusation and stoning of Steven. Now let's go back in time. Do you realize that it is possible from 2 different times that we might not even have a Paul or the books he wrote?
Jdg 20:46 And all who fell of Binyamin that day were twenty-five thousand men who drew the sword, all of these were mighty men.
Jdg 20:47 But six hundred men turned and fled toward the wilderness to the rock of Rimmon, and they dwelt at the rock of Rimmon for four months.
Jdg 20:48 And the men of Yisra’ĕl turned back against the children of Binyamin, and smote them with the edge of the sword from every city, men and beasts, all who were found. And they set fire to all the cities they came to.
And the men of Yisra’ĕl had sworn an oath at Mitspah, saying, "Not one of us shall give his daughter to Binyamin as a wife."
Jdg 21:3 and said, "O יהוה
Elohim of Yisra’ĕl, why has this come about in Yisra’ĕl, that today there should be one tribe missing in Yisra’ĕl?"
smite the inhabitants of Yaḇĕsh Gilʽaḏ with the edge of the sword, even the women and children.
Jdg 21:11 "And this is what you do: Put under the ban every male, and every woman who has known a man by lying with him."
Jdg 21:12 And they found among the inhabitants of Yaḇĕsh Gilʽaḏ four hundred young maidens who had not known a man. And they brought them to the camp at Shiloh, which is in the land of Kenaʽan.
Jdg 21:13 Then all the congregation sent, and spoke to the children of Binyamin who were at the rock of Rimmon, and proclaimed peace to them.
Jdg 21:14 And Binyamin turned back at that time, and they gave them the women whom they had saved alive of the women of Yaḇĕsh Gilʽaḏ. But even so there were not enough for them.
Jdg 21:20 And they commanded the children of Binyamin, saying, "Go, lie in wait in the vineyards,
This is the first instance of losing the tribe of Benjamin. The second occurs during the time of exile
Est 7:1 And the sovereign and Haman came in, to drink with Sovereigness Estĕr.
Est 7:2 And again on the second day, at the feast of wine, the sovereign said to Estĕr, "What is your petition, Sovereigness Estĕr? And it is given to you. And what is your request? Up to half my reign, and it is done!"
Est 7:3 And Sovereigness Estĕr answered and said, "If I have found favour in your eyes, O sovereign, and if it pleases the sovereign, let my life be given me at my petition, and my people at my request. Est 7:4 "For we have been sold, my people and I, to be cut off, to be slain, and to be destroyed. And if we had been sold as male and female slaves, I would have kept silent, although the adversary could not make up for the sovereign’s loss."
So we see Yahweh Elohim at work preserving His people.
Paul, an Emissary or an ambassador. Most of us know of Paul's salvation on the Damascus Road. If not I would encourage you to read Acts chapter 9. Paul, after his conversion was then set apart by the assembly at Antioch
Act 13:1 And in the assembly that was at Antioch there were certain prophets and teachers: both Barnaḇah and Shimʽon who was called Niger, and Lucius of Cyrene, and Manaḥĕm who had been brought up with Herodes the district ruler, and Sha’ul.
Act 13:2 And as they were doing service to the Master and fasted, the Set-apart Spirit said, "Separate unto Me Barnaḇah and Sha’ul for the work to which I have called them."
Act 13:3 Then having fasted and prayed, and having laid hands on them, they sent them away. Act 13:4 So they, having been sent out by the Set-apart Spirit, went down to Seleukeia, and from there they sailed to Cyprus.
This is Paul, an emissary or ambassador for Messiah in his own words.
Php 3:3 For we are the circumcision, which worship God in the spirit, and rejoice in Christ Jesus, and have no confidence in the flesh.
Php 3:4 Though I might also have confidence in the flesh. If any other man thinketh that he hath whereof he might trust in the flesh, I more:
Php 3:5 Circumcised the eighth day, of the stock of Israel, of the tribe of Benjamin, an Hebrew of the Hebrews; as touching the law, a Pharisee;
Php 3:6 Concerning zeal, persecuting the church; touching the righteousness which is in the law, blameless.