2 Timothy 1:5 (BSB)

I am reminded of your sincere faith, which first dwelt in your grandmother Lois and your mother Eunice, and I am convinced is in you as well.

From 2 Timothy 1. Also in the ESV.

Commentary on 2 Timothy 1:5

• John Calvin (Reformed), Calvin's Commentaries on 2 Timothy 1:1-18: COMMENTARIES ON THE SECOND EPISTLE TO TIMOTHY CHAPTER 1 2 Timothy 1:1-2 1. Paul, an apostle of Jesus Christ by the will of God, according to the promise of life which is in Christ Jesus, 1. Paulus apostolus Iesu Christi per voluntatem Dei, secundum promissionem vitae, quae est in Christo Iesu, 2.
• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on 2 Timothy 1:1-5: Here is, I. The inscription of the epistle Paul calls himself an apostle by the will of God, merely by the good pleasure of God, and by his grace, which he professes himself unworthy of. According to the promise of life which is in Christ Jesus, or according to the gospel.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on 2 Timothy 1:5: When I call to remembrance the unfeigned faith that is in thee,.... This caused him to give thanks to God for it, whose gift it is and made him the more desirous of seeing one, who was a true believer, and an Israelite indeed.
• Albert Barnes (Presbyterian), Barnes' New Testament Notes on 2 Timothy 1:5: Verse 5. When I call to remembrance the unfeigned faith that is in thee. . On the faith of Timothy, . Which dwelt first in thy grandmother Lois. That is, the same faith dwelt in her; or, she was a sincere believer in Christ. It would seem probable from this, that she was the first of the family who had been converted.