Acts 20:21

testifying both to Jews and Greeks the change of mind to God, and the faith in our Lord Jesus.

Acts 20:26-27

Wherefore I call you to witness this day, that I am pure from the blood of all men;

Acts 26:16-20

But rise and stand on your feet; for I have appeared to you for this purpose, to make you a minister and witness both of what you have seen and [of visions ] in which I will appear to you,

1 Timothy 4:1-3

But the Spirit says expressly, that in the last times some shall apostatize from the faith, attending to lying spirits and doctrines of demons,

2 Peter 3:3

knowing this first, that in the last days scoffers shall come with scoffing walking after their inordinate desires,

Treasury of Scripture Knowledge

Summary

A true witness delivereth souls: but a deceitful witness speaketh lies.

Bible References

General references

Acts 20:21
testifying both to Jews and Greeks the change of mind to God, and the faith in our Lord Jesus.
Acts 26:16
But rise and stand on your feet; for I have appeared to you for this purpose, to make you a minister and witness both of what you have seen and [of visions ] in which I will appear to you,
1 Timothy 4:1
But the Spirit says expressly, that in the last times some shall apostatize from the faith, attending to lying spirits and doctrines of demons,
2 Peter 3:3
knowing this first, that in the last days scoffers shall come with scoffing walking after their inordinate desires,