Luke 1:3-4

it seemed good to me also, having traced all things accurately from the first, to write in order to you, most excellent Theophilus,

1 Peter 3:15

and sanctify the anointed Lord in your hearts, and be always ready with a defense to every one that asks you a reason for the hope that is in you; but with meekness and fear,

John 20:31

but these are recorded that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in his name.

1 John 5:13

These things have I written to you, that you who believe in the name of the Son of God may know that you have eternal life.

Treasury of Scripture Knowledge

Summary

That I might make thee know the certainty of the words of truth; that thou mightest answer the words of truth to them that send unto thee?

Answer

Bible References

I

Luke 1:3
it seemed good to me also, having traced all things accurately from the first, to write in order to you, most excellent Theophilus,
John 20:31
but these are recorded that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in his name.
1 John 5:13
These things have I written to you, that you who believe in the name of the Son of God may know that you have eternal life.

Answer

1 Peter 3:15
and sanctify the anointed Lord in your hearts, and be always ready with a defense to every one that asks you a reason for the hope that is in you; but with meekness and fear,