Verses with the word whereby in the New Testament (15 verses):

Luke 1:18
And Zacharias said unto the angel, Whereby shall I know this? for I am an old man, and my wife well stricken in years.

Luke 1:78
Through the tender mercy of our God; whereby the dayspring from on high hath visited us,

Acts 4:12
Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved.

Acts 11:14
Who shall tell thee words, whereby thou and all thy house shall be saved.

Acts 19:40
For we are in danger to be called in question for this day's uproar, there being no cause whereby we may give an account of this concourse.

Romans 8:15
For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father.

Romans 14:21
It is good neither to eat flesh, nor to drink wine, nor any thing whereby thy brother stumbleth, or is offended, or is made weak.

Ephesians 3:4
Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)

Ephesians 4:14
That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive;

Ephesians 4:30
And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.

Philippians 3:21
Who shall change our vile body, that it may be fashioned like unto his glorious body, according to the working whereby he is able even to subdue all things unto himself.

Hebrews 12:28
Wherefore we receiving a kingdom which cannot be moved, let us have grace, whereby we may serve God acceptably with reverence and godly fear:

2 Peter 1:4
Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.

2 Peter 3:6
Whereby the world that then was, being overflowed with water, perished:

1 John 2:18
Little children, it is the last time: and as ye have heard that antichrist shall come, even now are there many antichrists; whereby we know that it is the last time.