Why is holding fast to Christ's name important for Christians?

In Revelation 2:13, Jesus commends the church in Pergamos for holding fast to His name, demonstrating their loyalty and faithfulness despite living in a city rife with idolatry and persecution. This commitment is vital for Christians, as it reflects their identity and the integrity of their witness to the world. When believers stand firm in their allegiance to Christ, they not only affirm their salvation but also resist the temptations to conform to worldly practices. Holding fast to His name is a call to maintain a pure doctrine and to bear witness to the saving truth of Jesus amid cultural pressures.