The Hebrew personal pronoun attah means 'you' (masculine singular). Its theological significance emerges in divine address: when God says 'You are my son' or when the psalmist cries 'You, O LORD, are my rock' — the direct second-person relationship between God and human beings is foregrounded.
The Psalms are saturated with second-person address to God: 'You are my shepherd' (Psalm 23), 'You, LORD, keep my lamp burning' (Psalm 18:28), 'You are enthroned as the Holy One' (Psalm 22:3). Hebrew prayer is not merely prayer about God — it is prayer to God, relational and direct.
Psalm 22's pivot to the second-person 'you' — 'But you are enthroned as the Holy One' (v.3) — is the hinge of faith: acknowledging God's holiness even in anguish. Jesus quotes this psalm from the cross.