'Scripture' in the Bible

“Brothers, the Scripture had to be fulfilled that the Holy Spirit through the mouth of David spoke in advance about Judas, who became a guide to those who arrested Jesus.

Now the Scripture passage he was reading was this:He was led like a sheep to the slaughter,and as a lamb is silent before its shearer,so He does not open His mouth.

So Philip proceeded to tell him the good news about Jesus, beginning from that Scripture.