IPlease do not add to this ignorance by suggesting any part of the Old Testament is out-of-date or irrelevant.
Amen. Great blessings, examples, principles from the OT.
But how "up-to-date" and "relevant" to the NT church today are the laws of national Israel? the laws of the sacrifices and Judaism?
Words like "relevant" are open to wide interpretation. We see a picture of the Lamb of God/Jesus Christ in the sacrificial system, so it is "relevant" in a loose sense. But to the day-to-day function of the NT church like they were to the day-to-day function of Judaism? Hardly a comparison
Webster shows
"relevant" as close logical relationship and importance to
"germane" as close natural connection or fit
"pertinent" as immediate and direct bearing
"apposite" as both relevant and appropriate
"applicable" as being brought to bear on a matter
"apropos" as opportune as well as relevant
I would choose the word "applicable" to the OT for the NT Church today. We can apply certain ideas, types and pictures as well as historical data and be enriched by such examples.
[Good discussion. Stretching my thinking and research. Thankful to have an old hard-copy Websters that lists synonyms and distinctions of each]