What evidence does the Bible provide for the assurance of salvation?

Assurance of salvation is firmly established in scripture, especially through the operation of the Holy Spirit in the believer's life. In Hebrews 7:25, it says, "He is able to save to the uttermost those who draw near to God through Him, since He always lives to make intercession for them." This indicates that Jesus continually intercedes for His people, further reinforcing the belief that true believers are secure in their salvation. Additionally, the Holy Spirit's indwelling presence acts as a guarantee of our ultimate redemption, highlighting that God’s work in our lives is a process that will not be undone.