Why did Malachi 3:7-10 talking tithe and II Corinthians chapter 9:7 talks about offering

https://peakd.com/hive-182074/@fatimajunio/ngqankol

* There is no contraction in the Bible

Proverbs 8:8  All the words of my mouth are in righteousness; there is nothing froward or perverse in them.

Even before the birth of the Lord Jesus Christ,  it was registered in the Bible

Psalms 12:6  The words of the LORD are pure words: as silver tried in a furnace of earth, purified seven times.

* Purest or all purer is the word of God, if Malachi 3:7-10 is the word of God, then II Corinthians:9-7 is also the word of God because giving tithe because giving tithe and offering are recommended to Istrealites

* II Corinthians:9-7 is for Christians and Christians are very much different from Istrealites