Matthew Poole and continuators on Deuteronomy 26:13

13 Then thou shalt say before the LORD thy God , I have brought away the hallowed things out of mine house, and also have given them unto the Levite, and unto the stranger, to the fatherless, and to the widow, according to all thy commandments which thou hast commanded me: I have not transgressed thy commandments, neither have I forgotten them.

(i. e.) Either before the Tabernacle or Temple: or rather, in thy private and domestick addresses to God; for this is to be said presently upon the distribution of these tithes, which was not done at Ierusalem, but in their own private gates or dwellings, except we will suppose that after he had given away these tithes at home he should go up to Ierusalem meerly to make this acknowledgment, which seems improbable. And this is to be spoken before the Lord, i. e. solemnly, seriously, and in a religious manner, with due respect to Gods presence and will and glory, which is a sufficient ground for that phrase.

Or, separated or removed, to wit, from my own proper and private fruits.

(i. e.) The tithes which hath been sanctified and set apart for these uses.