'Strengthening' in the Bible
So Tilgath-pilneser king of Assyria came to him and distressed him without strengthening him.
The Lord said, Truly your release, affliction, and strengthening will be for good [purposes]; surely [Jeremiah] I will intercede for you with the enemy and I will cause the enemy to ask for your aid in the time of evil and in the time of affliction.
But woe to (alas for) you who are rich ( abounding in material resources), for you already are receiving your consolation (the solace and sense of strengthening and cheer that come from prosperity) and have taken and enjoyed your comfort in full [having nothing left to be awarded you].
And there appeared to Him an angel from heaven, strengthening Him in spirit.
Establishing and strengthening the souls and the hearts of the disciples, urging and warning and encouraging them to stand firm in the faith, and [telling them] that it is through many hardships and tribulations we must enter the kingdom of God.
And he passed through Syria and Cilicia, establishing and strengthening the churches.
Laboring together [as God's fellow workers] with Him then, we beg of you not to receive the grace of God in vain [that merciful kindness by which God exerts His holy influence on souls and turns them to Christ, keeping and strengthening them -- "do not receive it to no purpose].
For we are glad when we are weak ( unapproved) and you are really strong. And this we also pray for: your all-round strengthening and perfecting of soul.
So by whatever [appeal to you there is in our mutual dwelling in Christ, by whatever] strengthening and consoling and encouraging [our relationship] in Him [affords], by whatever persuasive incentive there is in love, by whatever participation in the [Holy] Spirit [we share], and by whatever depth of affection and compassionate sympathy,