1. Christ, who has perfected us for all time by one offering (Ex 27:1)
    Heb 9:9, 22, 10:14, 18

In the Old Testament, God had the Israelites build the tabernacle to offer sacrifices to God. (Ex 27:1)

Ex 27:1 And thou shalt make an altar of shittim wood, five cubits long, and five cubits broad; the altar shall be foursquare: and the height thereof shall be three cubits.

In the Old Testament, the Israelites were forgiven of their sins by shedding the blood of a burnt offering to God. (Heb 9:22)

Heb 9:22 And almost all things are by the law purged with blood; and without shedding of blood is no remission.

In the Old Testament, the sacrifice offered in the tabernacle is a parable to explain the true sacrifice of Christ who is to come. We cannot be made whole through the sacrifice of the Old Testament tabernacle. (Heb 9:9)

Heb 9:9 Which was a figure for the time then present, in which were offered both gifts and sacrifices, that could not make him that did the service perfect, as pertaining to the conscience;

Jesus completely and forever forgiven all our sins by offering Himself to God once for all. (Heb 10:14,18)

Heb 10:14 For by one offering he hath perfected for ever them that are sanctified.
18 Now where remission of these is, there is no more offering for sin.