Tithing is a practices that originates from the Old Testament era. But unlike most of the OT tradition that are claimed to have been made redundant by the blood of JC, tithing remains a practices encouraged and practised some Christian churches. The blood of JC is supposed to have done away with sacrifices (human and animals), dietary laws, cleanliness laws, scapegoating, and many of the ritualistic practices of the Jews at their temples.
Of all the ritualistic practices of the Jew, tithing is perhaps the only one still practised by some Christian bodies. Where in the NT is an exception made specifically about tithing? Why is tithing not considered redundant like the other ritualism the blood of JC replaced? BTW, what is acceptable as tithes today?
Is it because there are huge pecuniary implications to the practice which if given up would drastically impact the survival of many churches? Are these tithes not used to line the pockets of the church administrators?