Isn't the Trinity a contradiction?

What does the bible say about tithing? In this video, you are going to learn the truth about tithing. It is popular in Christian churches to teach that we must tithe 10% of our paycheck to the church, but is this really what the Bible teaches? I find it quite ironic (and hypocritical) that the churches who teach that the Law is abolished are the same ones who teach that you must pay them tithes from your income. This teaching is quite popular because it ensures a steady income for the pastors, but is this type of tithing Biblical? What does the Bible actually tell us about tithing? Does the tithe actually belong to the preacher? We will see that tithes are actually part of the temple service and belong to the Levites because they have no land inheritance.