What does the Bible mean by 'making your calling and election sure'?

The phrase 'make your calling and election sure' originates from 2 Peter 1:10, which encourages believers to seek assurance in their relationship with God through diligent faith and good works, reflecting the transformative power of grace. A believer's confidence stems from the knowledge of being chosen in Christ for salvation. This assurance doesn't lead to complacency; instead, it compels believers to pursue holiness and efficacy in their calling. Continuously seeking God's grace and affirming one’s relationship through faithful living confirms our identity as His chosen ones and assures us of salvation.