81/3 is often referring to the Book of Psalm in the Bible. Below, you will find different variations of the verse. You will also find the breakdown and the full chapter to provide more context of 81/3.
Psalm 81:3-4 KJV
3 Blow up the trumpet in the new moon, in the time appointed, on our solemn feast day.
4 For this was a statute for Israel, and a law of the God of Jacob.
Psalm 81:3-4 NCV
3 Blow the trumpet at the time of the New Moon, when the moon is full, when our feast begins.
4 This is the law for Israel; it is the command of the God of Jacob.
Psalm 81:3-4 NIRV
3 Blow the ram’s horn on the day of the New Moon feast. Blow it again when the moon is full and the Feast of Booths begins.
4 This is an order given to Israel. It is a law of the God of Jacob.
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All of Chapter 81 for Context of Psalm 81/3
81 Sing aloud unto God our strength: make a joyful noise unto the God of Jacob.
2 Take a psalm and bring hither the timbrel, the pleasant harp with the psaltery.
3 Blow up the trumpet in the new moon, in the time appointed, on our solemn feast day.
4 For this was a statute for Israel, and a law of the God of Jacob.
5 This he ordained in Joseph for a testimony, when he went out through the land of Egypt: where I heard a language that I understood not.
6 I removed his shoulder from the burden: his hands were delivered from the pots.
7 Thou calledst in trouble, and I delivered thee; I answered thee in the secret place of thunder: I proved thee at the waters of Meribah. Selah.
8 Hear, O my people, and I will testify unto thee: O Israel, if thou wilt hearken unto me;
9 There shall no strange god be in thee; neither shalt thou worship any strange god.
10 I am the Lord thy God, which brought thee out of the land of Egypt: open thy mouth wide, and I will fill it.
11 But my people would not hearken to my voice; and Israel would none of me.
12 So I gave them up unto their own hearts’ lust: and they walked in their own counsels.
13 Oh that my people had hearkened unto me, and Israel had walked in my ways!
14 I should soon have subdued their enemies, and turned my hand against their adversaries.
15 The haters of the Lord should have submitted themselves unto him: but their time should have endured forever.
16 He should have fed them also with the finest of the wheat: and with honey out of the rock should I have satisfied thee.