'Whereby' in the Bible

who shall speak words to thee whereby thou shalt be saved, thou and all thy house.

For ye have not received a spirit of bondage again for fear, but ye have received a spirit of adoption, whereby we cry, Abba, Father.

So then let us pursue the things which tend to peace, and things whereby one shall build up another.

of how much worse punishment, think ye, shall he be judged worthy who has trodden under foot the Son of God, and esteemed the blood of the covenant, whereby he has been sanctified, common, and has insulted the Spirit of grace?