Can anyone be assured of their salvation?

In Philippians 3:1-3, the Apostle Paul encourages believers by asserting, 'Rejoice in the Lord...' This call for joy is rooted in the assurance that true faith in Christ brings. Assurance comes not from self-reliance or works, but from a steadfast belief in God's promises and a rejection of confidence in the flesh. The believer’s assurance lies in the grace of God and the transformative power of the Holy Spirit. When one experiences genuine faith, there is a resulting confidence in the sufficiency of Christ's righteousness credited to them, granting them assurance of their standing before God.