In Mark 6:7, Jesus gives the twelve authority over unclean spirits — the same authority promised to all believers in Mark 16:17.

Acts 5:16 shows the apostles healing and casting out unclean spirits, demonstrating the signs that accompany believers in Mark 16:17.

1 Corinthians 14:5-26 regulates speaking in tongues in worship, expanding on the practice mentioned as a sign in Mark 16:17.

1 Corinthians 12:28 includes tongues among the gifts God set in the church, paralleling the 'new tongues' sign mentioned in Mark 16:17.

1 Corinthians 12:10 lists tongues as a spiritual gift, echoing the same phenomenon promised as a sign to believers in Mark 16:17.

Acts 19:12-16 shows Paul's successful healings and the failed exorcism by sons of Sceva, illustrating that genuine belief is needed for the signs in Mark 16:17.

Acts 19:6 records Paul laying hands on disciples, and they speak in tongues—again confirming the sign of new tongues from Mark 16:17.

Acts 16:18 records Paul commanding a spirit out in Jesus' name, directly illustrating the demon-casting sign promised in Mark 16:17.

Acts 10:46 shows Gentiles speaking in tongues at Cornelius’s house—another direct example of the 'new tongues' sign promised in Mark 16:17.

Acts 8:7 describes unclean spirits coming out of many possessed by Philip, fulfilling the casting out demons sign in Mark 16:17.

Acts 2:33 records the first fulfillment of the promise: the exalted Christ pours out the Spirit, and believers speak in tongues as the sign.

Acts 2:4 records the first instance of speaking in tongues at Pentecost, fulfilling the 'new tongues' sign promised in Mark 16:17.

John 14:12 promises believers will do Jesus' works and even greater ones, adding the reason (Jesus going to the Father) to the signs listed in Mark 16:17.

Luke 10:17 records disciples joyfully reporting demons subject to them in Jesus' name, providing a narrative example of the sign promised in Mark 16:17.

Acts 3:16 attributes the healing to faith in Jesus' name — the same name by which believers perform signs in Mark 16:17.

Acts 5:12 records many signs and wonders performed by the apostles — directly fulfilling the promised signs for believers.

Matthew 10:1 gives the twelve authority over unclean spirits—the same power to cast out demons that Mark 16:17 promises to all believers.

Acts 3:6 shows Peter healing a lame man in Jesus' name — a specific sign of the authority promised to believers.

Acts 8:13 notes that Simon saw great signs performed — evidence of the signs that accompany believers as promised.

Acts 2:43 reports many signs and wonders done through the apostles — fulfilling the promised signs that accompany believers in Mark 16:17.

Acts 19:11 says God did extraordinary miracles through Paul — an instance of the signs promised to believers in Mark 16:17.

Luke 9:1 shows Jesus giving the twelve power over all demons — directly paralleling the promise that believers will cast out demons in his name.

1 Corinthians 12:30 questions whether all speak in tongues, creating tension with Mark 16:17 which implies the sign accompanies all believers.

In 1 Corinthians 14:22, Paul says tongues are a sign for unbelievers, complementing Mark 16:17 where tongues are a sign accompanying believers—different functions of the same gift.

Luke 4:36 records amazement at Jesus' authority over demons — a demonstration of the same power later granted to believers.