'Weakness' in the Bible

Who is weak, and I do not feel [his] weakness? Who is made to sin, and I am not on fire [with sorrow and concern]?

but He has said to me, “My grace is sufficient for you [My lovingkindness and My mercy are more than enough—always available—regardless of the situation]; for [My] power is being perfected [and is completed and shows itself most effectively] in [your] weakness.” Therefore, I will all the more gladly boast in my weaknesses, so that the power of Christ [may completely enfold me and] may dwell in me.

For even though He was crucified in weakness [yielding Himself], yet He lives [resurrected] by the power of God [His Father]. For we too are weak in Him [as He was humanly weak], yet we are alive and well [in fellowship] with Him because of the power of God directed toward you.