Lutheran theology affirms that Hebrews 1:8 is a clear biblical affirmation of the deity of Christ. The Father himself addresses the Son as God (Psalm 45:6 quoted in Hebrews 1:8), which is understood as explicit testimony to Christ's full divinity. This passage is frequently cited in Lutheran theological literature as support for the doctrine that Christ is 'true God, begotten of the Father from eternity' (Small Catechism).

The passage is integrated into Lutheran Christology and understood within the larger context of Hebrews 1, which presents Christ as the radiance of God's glory and the exact representation of his being. Hebrews 1:8 is one of several New Testament passages that directly ascribe the divine title 'God' (theos) to Christ.