The Old Testament is full of types and shadows of New Covenant life. These types are hidden for the most part to eyes that can’t see the pictures of Jesus in the Old Testament. When we read Psalm 20:3, we immediately think of all the Old Testament sacrifices God prescribed for the people. They were all pictures of Jesus.
“May He remember all your offerings, and accept your burnt sacrifice. Selah” (Psalm 20:3 NKJV).
These were sin offerings, offered on the brazen altar by the priests for the sins of the people. The person who brought the sacrifice placed his sin on the unblemished sacrifice and the righteousness of the unblemished sacrifice God imputed to the person offering. It was a continuing thing. They sacrificed thousands of lambs, goats, oxen for the temporary covering of sin.
All these things point to “the Lamb of God, which taketh away the sin of the world” (John 1:29 KJV). No more the continual offering of sacrifices. “Who does not need daily, as those high priests, to offer up sacrifices, first for His own sins and then for the people’s, for this He [Jesus] did once for all when He offered up Himself” (Hebrews 7:27 NKJV). Once for all—forever.