Passage
Who pardons all your iniquities, Who heals all your diseases;
Who pardons all your iniquities, Who heals all your diseases;
Psalms 103:1 Of David. Bless Yahweh, O my soul, And all that is within me, bless His holy name.
Psalms 103:2 Bless Yahweh, O my soul, And forget none of His benefits;
Psalms 103:3 Who pardons all your iniquities, Who heals all your diseases;
Psalms 103:4 Who redeems your life from the pit, Who crowns you with lovingkindness and compassion;
Psalms 103:5 Who satisfies your years with good things, So that your youth is renewed like the eagle.
The verse centers on "iniquities", "pardons", "heals", and "diseases". It is saying that the verse draws attention to "iniquities" and "pardons", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 2's "Bless Yahweh O my soul And forget..." into verse 4's "Who redeems your life from the pit...", so "iniquities" and "pardons" belong inside that flow. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "iniquities" and "pardons" with trust shaped by these words, not by a vague optimism outside the passage.