'Strength' in the Bible

“The bows of the mighty are shattered,But the feeble gird on strength.

“Those who contend with the Lord will be shattered;Against them He will thunder in the heavens,The Lord will judge the ends of the earth;And He will give strength to His king,And will exalt the horn of His anointed.”

Behold, the days are coming when I will break your strength and the strength of your father’s house so that there will not be an old man in your house.

Then Saul immediately fell full length upon the ground and was very afraid because of the words of Samuel; also there was no strength in him, for he had eaten no food all day and all night.

So now also, please listen to the voice of your maidservant, and let me set a piece of bread before you that you may eat and have strength when you go on your way.”

Then David and the people who were with him lifted their voices and wept until there was no strength in them to weep.