What does the Bible say about holding fast to the gospel?

In 2 Timothy 1:13, the Apostle Paul encourages believers to 'hold fast the form of sound words' that they have received in faith and love through Jesus Christ. This notion of holding fast implies a strong commitment to the gospel message, which should not be taken lightly or treated as something to experiment with. The gospel is not merely a trial—it is the lifeline for believers, akin to a life preserver in the ocean. As such, the exhortation to hold fast emphasizes the urgency and necessity of grasping onto eternal life, especially when facing trials or temptations that threaten to divert our focus away from Christ's promises.