How do we know that we are secure in our salvation?

The assurance of salvation in the Reformed tradition is rooted in the understanding that salvation is solely based on God's sovereign grace. In 1 Peter 2:9, Peter affirms that believers are a 'chosen generation' and possess a unique identity secured by God's election. The efficacy of Christ's atonement and the promise of eternal security signifies that true believers cannot fall from grace due to their failures or sins. This assurance allows believers to live boldly for Christ, as their standing before God is not rooted in their performance, but in His finished work.