I think we already covered this, sister.

Precision is important.

The "first" and "pattern" is referring to our Lord Jesus Christ showing forth all longsuffering in saving the chief of sinners, Saul of Tarsus.

1 Timothy 1:16 
(For what cause? Remember?)
👉 Howbeit for this cause I obtained mercy,

👉 that in me first 

👉 Jesus Christ might shew forth all longsuffering, 

👉 for a pattern to them which should hereafter believe on him to life everlasting. 

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Without Scripture support, it's a leap to say Paul was the first member saved into the body of Christ.

It's men's traditions at this point because the Scriptures do not teach this.