I am reminded of your sincere faith, which first lived in your grandmother Lois and in your mother Eunice and, I am persuaded, now lives in you also.
NIV
I am calling up memories of your sincere and unqualified faith (the leaning of your entire personality on God in Christ in absolute trust and confidence in His power, wisdom, and goodness), [a faith] that first lived permanently in [the heart of] your grandmother Lois and your mother Eunice and now, I am [fully] persuaded, [dwells] in you also.
AMP
When I call to remembrance the unfeigned faith that is in thee, which dwelt first in thy grandmother Lois, and thy mother Eunice; and I am persuaded that in thee also.
KJV