'Strengthen' in the Bible

And I declare to them the hand of my God that is good upon me, and also the words of the king that he said to me, and they say, 'Let us rise, and we have built;' and they strengthen their hands for good.

And Ezer son of Jeshua, head of Mizpah, doth strengthen, by his hand, a second measure, from over-against the ascent of the armoury at the angle.

After him hath Baruch son of Zabbai hastened to strengthen a second measure from the angle unto the opening of the house of Eliashib the high priest.

for all of them are making us afraid, saying, 'Their hands are too feeble for the work, and it is not done;' and now, strengthen Thou my hands.