When the cares of my heart are many, your consolations cheer my soul.
Christians often believe that the consolations of Christ and the peace wrought by the Spirit means that they will not experience troubles and trials as painful. Thus when they feel pain, they fear that have sinned and so become discouraged.
But here the Psalmist admits to his pain. He does not deny the pain, but sees that God offers a consolation in that pain.
While such consolation may be an immediate work of the Spirit, that is not the sole means used by God. Often that consolation comes from the Body of Christ in demonstrable acts of mercy and care:
3 Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies and God of all comfort,
4 who comforts us in all our affliction, so that we may be able to comfort those who are in any affliction, with the comfort with which we ourselves are comforted by God.
5 For as we share abundantly in Christ’s sufferings, so through Christ we share abundantly in comfort too.
6 If we are afflicted, it is for your comfort and salvation; and if we are comforted, it is for your comfort, which you experience when you patiently endure the same sufferings that we suffer.
2 Cor. 1:3-6.
Paul supposes that the congregation will have tears and joy – which will be shared:
Rejoice with those who rejoice, weep with those who weep.
The world is troublesome, but such trouble exists to force us to seek comfort elsewhere. As Augustine wrote in the Confessions, Book IV:
Rest in Him, and ye shall be at rest. Whither go ye in rough ways? Whither go ye? The good that you love is from Him; but it is good and pleasant through reference to Him, and justly shall it be embittered, because unjustly is any thing loved which is from Him, if He be forsaken for it. To what end then would ye still and still walk these difficult and toilsome ways? There is no rest, where ye seek it. Seek what ye seek; but it is not there where ye seek. Ye seek a blessed life in the land of death; it is not there. For how should there be a blessed life where life itself is not?