In verses 10-12, the author quotes from Psalm 102 to further emphasize their point. The context of Psalm 102 clearly indicates that the “Lord” is the One who would appear in the future to Israel and the nations (Ps 102:12-16). Thus, the psalm can only refer to Jesus, the Second Person of the Trinity, the only One who would become incarnate. Jesus is God become man. The universe will perish (2 Pet 3:10-13; Rev 21:1), but the Son will remain forever. The universe will be changed, but the Son will remain the same (Heb 13:8). The psalmist was showing that only God provides stability and security. God is anchored like a rock, and we can anchor our lives to this mountain of immobility.

The seventh quotation comes from Psalm 110:1. Verse 13 shows that Christ’s ascension lifted Him to a place of authority and power at the Father’s right hand. Jesus claimed that this verse referred to Him (Mark 12:36). Although we live at a time when the Son’s enemies are not yet a footstool, the New Testament promises the Son’s complete victory at the end (1 Cor. 15:24–27).