'Discouragement' in the Bible

Moses told this to the Israelites, but they did not listen to him because of their discouragement and hard labor.

At the time of the evening sacrifice, I arose from my discouragement. Still in my torn garment and robe, I fell to my knees with my hands outstretched to the LORD my God,

to strengthen those who mourn in Zion, by giving them a turban, instead of ashes, oil symbolizing joy, instead of mourning, a garment symbolizing praise, instead of discouragement. They will be called oaks of righteousness, trees planted by the Lord to reveal his splendor.

So the Spirit lifted me up and took me away, and I went embittered [by the sins of Israel] in the rage of my spirit; and the hand of the Lord was strong on me.