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.

Whom did Jesus pronounce blessed?
What is Christ to one renewed after God's image?
To whom are those who suffer exhorted to commit their souls?
Concerning what subject ought we to be informed?
Why did the Lord abhor the Canaanites?
On what day was John in the Spirit?
What will the Lord he to His people at this time?

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