What specific instance is mentioned by Peter?

Answer

'Men and brethren, this scripture must needs have been fulfilled, which the Holy Ghost by the mouth of
David spoke before concerning Judas, which was guide to them that took Jesus!' Acts 1: 16.

What other book of the Bible is especially commended for our study?
Why did the apostle say this duty was so imperative?
Under what condition is the written law good?
What awaits those who despise the means of grace?
Of what did Christ say the Son of man is Lord?
Did they observe it after His resurrection?
In what respect is the reaping of God's people to differ from their sowing?

Questions & Answers are from the book Bible Readings for the Home Circle