“As for me, I will behold thy face in righteousness: I shall be satisfied, when I awake, with thy likeness.” Psalm 17:15
Every person that has been born again has that inner witness of salvation because the Spirit of God has come to dwell in them. Yet we can learn from David, who was born 1000 years before Christ, what it means to believe. David had no privilege to have that inner witness like we do, yet you can read how confident he was that he would awake in the presence of the Lord. He knew of no salvation through Jesus Christ, yet he believed God that there would be salvation. The payment for sin was not yet understood, yet he believed in the mercy of God. Lord, increase our faith.