Comfort translates the Greek word paraklesis which carries not only a sense of consoling but also help or encouragement.2 Cor. 1.3 Paul alludes to this, "Blessed be the God and Father of our lord Jesus Christ, the Father of tender mercies and the God of all comfort, who comforts us in all our tribulation, that we may be able to comfort those in any sort of tribulation through the comfort with which we ourselves are being comforted by God."
It is of interest that in these few short verses from verse 3 through verse 7, comfort (paraklesis) is mentioned 10 times, which indicates the importance of this subject to Paul.
Isaiah speaks of Divine comfort in Isaiah 57.18. It alludes to the fact that 'true comfort', can come only from Jehovah. Going back to 2Cor.1.3 "He is the God of all comfort". True consolation of the heart comes from God alone, in comparison of all others.
Apart from God, man, nation, and world are without comfort, for they cannot really open the way eschatologically to mans sinful state. The Psalmist records for us in Psalm 127.1 "Unless Jehovah himself builds the house, It is to no avail that the builders have worked hard on it.
That is why when Isaiah speaks of comfort from God, it is spoken of as, true comfort ( paraklesis alethinen). I looked this verse up in several translations. Not one suggest such a rendering, though Kittels Unabridged Dictionary of Greek words pg 789 vol.5. suggest this rendering. So I looked it up in the LXX and there it was, "paraklesis alethinen." (true comfort) From God alone can such comfort come.
Romans 15.4 speaks of comfort from the Scriptures (paraklesis ton graphon) This refers us back to the ultimate source of all comfort (2 Cor.1.3) Jehovah.
He is the only one who can give us, 'everlasting comfort'. "Moreover, may our Lord Jesus Christ himself and God our Father, who loved us and gave everlasting comfort and good hope by means of undeserved kindness." 2 Thess. 2.16,17 He assures us of comfort forever or everlastingly.
He comforts in our tribulations. 2Cor.1.4. Jesus said: In the world you are having tribulation, but take courage! I have conquered the world."
Revelation 21.3,-5
"With that I heard a loud voice from the throne say: “Look! The tent*+ of God is with mankind, and he will reside*+ with them, and they will be his peoples.+ And God himself will be with them.+ 4 And he will wipe out every tear+ from their eyes, and death will be no more,+ neither will mourning nor outcry nor pain be anymore.+ The former things have passed away.”+
5 And the One seated on the throne+ said: “Look! I am making all things new.”+ Also, he says: “Write, because these words are faithful and true."
See also Psalms 118
Isaiah 40.1,11-14
Ps 55.6-8
Addendum
Metaphorically Jehovah is likened to a Shepherd who loves his sheep. "Like a shepherd he will shepherd his own drove. With his Arm he will collect together the lambs; and in his bosom (a close and loving relationship) he will carry them." Isaiah 40.11
And note 40.1 "Comfort, comfort my people." Then he lets us know his immutable abilities and unsurpassing strengths. "Who has measured the waters in the mere hollow of his hand, and taken the proportions of the heavens themselves with a mere span and included in a measure the dust of the earth, or weighed with an indicator the mountains, and the hills in the scales? Who has taken the proportions of the spirit of Jehovah, and who as his man of counsel can make him know anything?
With whom did he consult together that one might make him understand, or who teaches him in the path of justice, or teaches him knowledge, or makes him know the very way of real understanding?"
Isaiah 40.12-14.
Psalm
Will lodge under the shadow of the Almighty.+
3 For he will rescue you from the trap of the birdcatcher,
From the destructive pestilence.
Nor the arrow that flies by day,+
6 Nor the pestilence that stalks in the gloom,
Nor the destruction that ravages at midday.
7 A thousand will fall at your side
And ten thousand at your right hand,
But to you it will not come near.+
9 Because you said: “Jehovah is my refuge,”
And no plague will come near your tent.
13 On the young lion and the cobra you will tread;
You will trample underfoot the maned lion and the big snake.+
I will be with him in distress.+
I will rescue him and glorify him.
Psalm
2 That is why we will not fear, though the earth undergoes change,
Though the mountains topple into the depths of the sea,+
Though the mountains rock on account of its turbulence. (Selah)
The holy grand tabernacle of the Most High.
God will come to its aid at the break of dawn.+
6 The nations were in an uproar, the kingdoms were overthrown;
He raised his voice, and the earth melted.+
8 Come and witness the activities of Jehovah,
How he has done astonishing things on the earth.
He breaks the bow and shatters the spear;
He burns the military wagons* with fire.
10 “Give in and know that I am God.
