'Sake' in the Bible

Are they not all ministering spirits, sent out to render service for the sake of those who will inherit salvation?

For it was fitting for God [that is, an act worthy of His divine nature] that He, for whose sake are all things, and through whom are all things, in bringing many sons to glory, should make the author and founder of their salvation perfect through suffering [bringing to maturity the human experience necessary for Him to be perfectly equipped for His office as High Priest].

For ground that drinks the rain which often falls on it and brings forth vegetation useful to those for whose sake it is also tilled, receives a blessing from God;

For God is not unjust so as to forget your work and the love which you have shown for His name in ministering to [the needs of] the saints (God’s people), as you do.

For he considered the reproach because of the Messiah to be greater wealth than the treasures of Egypt, since his attention was on the reward.

simply fixing our gaze upon Jesus, our Prince Leader in the faith, who will also award us the prize. He, for the sake of the joy which lay before Him, patiently endured the cross, looking with contempt upon its shame, and afterwards seated Himself-- where He still sits--at the right hand of the throne of God.