اَلْعَدَد 18:26

«وَٱللَّاوِيُّونَ تُكَلِّمُهُمْ وَتَقُولُ لَهُمْ: مَتَى أَخَذْتُمْ مِنْ بَنِي إِسْرَائِيلَ ٱلْعُشْرَ ٱلَّذِي أَعْطَيْتُكُمْ إِيَّاهُ مِنْ عِنْدِهِمْ نَصِيبًا لَكُمْ، تَرْفَعُونَ مِنْهُ رَفِيعَةَ ٱلرَّبِّ: عُشْرًا مِنَ ٱلْعُشْرِ،

Thus speak unto the Levites, and say unto them, When ye take of the children of Israel the tithes which I have given you from them for your inheritance, then ye shall offer up an heave offering of it for the LORD, even a tenth part of the tithe.