Isaiah 61 starts out with "The Spirit of the Lord God is upon me; because the Lord has anointed me to preach good tidings to the meek..."
Then in verse three we read, that we have been given "...the garment of praise for the spirit of heaviness..."
The NIV says, "...the spirit of despair..."

As seen before there is a sense of anxiousness and heaviness that abounds in the world today. Even Christians experience a weariness from time to time.
But that is NOT what the Christian is called to. As the Apostle Paul exhorts the Believer in Galatians 6:9, "And let us not grow weary while doing good, for in due season we shall reap if we do not lose heart."

Jesus said, "I am the way, the truth, and the life..." John 14:6

The Apostle John assures us in 1 John 5:12, "He who has the Son has life; he who does not have the Son of God does not have life."

Martyn Lloyd-Jones writes in his book 'Spiritual Depression':
"The Christian life is not a task. The Christian life alone is worthy of the name life. This alone is righteous and holy and pure and good. It is the kind of life the Son of God Himself lived."

It is the life of Christ that indwells us, therefore, we look to Him in all our circumstances. And He has given us the garment of praise! When we praise the Lord, the things of earth grow dim in the glory of the grace that He has shown.

And what is this praise?
Our praise to God is the means by which we express our joy to the Lord.
We praise Him for Who He is (that's adoration) and for what He has done and is doing (that's thanksgiving).

How do we praise Him?
In Song:
"Sing praises to the Lord, who dwells in Zion; Declare among the peoples His deeds." Psalm 9:11

With instruments:
"Give thanks to the Lord with the lyre;
Sing praises to Him with a harp of ten strings." Psalm 33:2

We praise universally/corporately:
"Let the peoples praise Thee, O God;
Let all the peoples praise Thee." Psalm 67:3

"Let them give glory to the Lord,
And declare His praise in the coastlands." Isaiah 42:12

We praise perpetually:
"Through Him then, let us continually offer up a sacrifice of praise to God, that is, the fruit of lips that give thanks to His name." Hebrews 13:15

The Apostle Peter gives us this awesome reason to give praise:
"But you are a chosen race, a royal priesthood, a holy nation, a people for God's own possession, that you may proclaim the excellences of Him who has called you out of darkness into His marvelous light." 1 Peter 2:9

So we heed what the writer of Hebrews tells us:
"Fixing your eyes on Jesus...consider Him who has endured such hostility by sinners against Himself, so that you may not grow weary and lose heart."
Hebrews 12:2-3 (Read Verses 1-11 and rest in Christ as God does His work in each of our lives to make us complete.)

Lord God, we give you all praise, honor and glory for only You are worthy of it all!  Amen