Acts 18:5-6

And when Silas and Timothy arrived from Macedonia, Paul was engrossed in his message, earnestly testifying to the Jews that Jesus was the Messiah.

Acts 20:26

So I testify to you this day that I am clear from the blood of all men;

1 Timothy 4:16

Give heed to yourself and to your teaching. Persevere in these things, for by doing this you will save both yourself and your hearers.

Luke 10:10-11

"But whatever town you enter, and they do not receive you, Go out into the streets and cry,

Acts 13:45-46

When they saw the crowds, the Jews were filled with jealousy, and began to contradict Paul's statements, and to abuse him.

2 Corinthians 2:15-17

I am Christ's fragrance upwafted unto God, among those who are being saved and those who are perishing;

1 Thessalonians 4:6

That no man overreach or take advantage of his brother in such matters, because "the Lord takes vengeance" in all these things, as also I repeatedly forewarned you and testified to you.

2 Thessalonians 1:8-9

in flaming fire. Then shall he take vengeance on those who know not God, even on those who do not obey the gospel of our Lord Jesus.

Hebrews 2:1-3

For this reason we must pay the more earnest heed to the things which we have heard, for fear we should drift away.

Hebrews 10:26-27

For if we sin wilfully, after we have received the knowledge of the truth, there no longer remains any other sacrifice for sins,

Hebrews 12:25

See that you do not refuse him who is speaking. For if they did not escape punishment when they refused to listen to their instructor on earth, much less shall we escape if we turn away from him who is teaching us from heaven;

Treasury of Scripture Knowledge

Summary

Yet if thou warn the wicked, and he turn not from his wickedness, nor from his wicked way, he shall die in his iniquity; but thou hast delivered thy soul.

Bible References

He shall

2 Thessalonians 1:8
in flaming fire. Then shall he take vengeance on those who know not God, even on those who do not obey the gospel of our Lord Jesus.
Hebrews 10:26
For if we sin wilfully, after we have received the knowledge of the truth, there no longer remains any other sacrifice for sins,

But thou

Acts 13:45
When they saw the crowds, the Jews were filled with jealousy, and began to contradict Paul's statements, and to abuse him.
Acts 20:26
So I testify to you this day that I am clear from the blood of all men;
2 Corinthians 2:15
I am Christ's fragrance upwafted unto God, among those who are being saved and those who are perishing;