The abstract noun "practice" here refers to a way of atoning for sins. Stopping doing it is spoken of as if it were an object that could be taken away. Starting the second way of atoning for sins is spoken of as establishing that practice. AT: "He stops people atoning for sins the first way in order to atone for sins the second way" (See: [[rc://en/ta/man/translate/figs-abstractnouns]] and [[rc://en/ta/man/translate/figs-metaphor]])
# first practice ... the second practice
The words "first" and "second" are ordinal numbers. AT: "old practice ... the new practice" (See: [[rc://en/ta/man/translate/translate-ordinal]])
# we have been sanctified
This can be stated in active form. AT: "God has sanctified us" or "God has dedicated us to himself" (See: [[rc://en/ta/man/translate/figs-activepassive]])
# through the offering of the body of Jesus Christ
The abstract noun "offering" can be expressed with the verb "offer" or "sacrifice." AT: "because Jesus Christ offered his body as a sacrifice" or "because Jesus Christ sacrificed his body" (See: [[rc://en/ta/man/translate/figs-abstractnouns]])