Catholic Commentary on Psalm 81

"Open wide your mouth and I will fill it." (Psalm 81:10)

The Feast and the Refusal

Psalm 81 is a liturgical psalm for one of Israel's great feasts, possibly Tabernacles. It opens with a call to joyful worship: sing for joy to God our strength, shout aloud to the God of Jacob, bring the tambourine, the harp, the lyre. The whole body enters worship. Then the voice shifts and God himself speaks through the psalm, recalling the Exodus: I am the LORD your God who brought you up out of Egypt. And he makes an extraordinary promise: Open wide your mouth and I will fill it.

But the psalm turns on a grief: the people would not listen. God gave them over to their stubborn hearts. If only they would listen and walk in his ways, he would quickly subdue their enemies and feed them with the finest wheat and honey from the rock. The tragedy of the psalm is the gap between what God offers and what the people choose. The Catechism reflects on this divine restraint: God does not force the human will; he invites, he waits, he grieves the refusal, and he continues to offer (CCC 1730). The mouth opened wide in worship is the posture that receives everything. The closed mouth receives nothing.

Living the Word

Brothers and sisters, the promise of Psalm 81 is one of the most beautiful in the Psalter: open your mouth wide and I will fill it. What does it mean to open wide? It means coming to God without an agenda of your own, without a predetermined answer you want him to confirm. Just open. Ask to be filled with whatever he chooses to give. That is the prayer he promises to answer fully.

Prayer

Lord God, we open our mouths wide before you. Fill us with whatever you choose: with your word, your Spirit, your grace, your correction. We will not tell you what to put in. We come hungry, and you are the bread. Through Christ our Lord. Amen.

81
Sing for Joy to God Our Strength
For the choirmaster. According to Gittith.* 81:0 Gittith is probably a musical or liturgical term; here and in Psalms 8 and 84. Of Asaph.
 
Sing for joy to God our strength;
make a joyful noise to the God of Jacob.
Lift up a song, strike the tambourine,
play the sweet-sounding harp and lyre.
Sound the ram’s horn at the New Moon,
and at the full moon on the day of our Feast.
For this is a statute for Israel,
an ordinance of the God of Jacob.
He ordained it as a testimony for Joseph 81:5 Or in Joseph
when he went out over the land of Egypt,
where I heard an unfamiliar language:
 
“I relieved his shoulder of the burden;
his hands were freed from the basket.
You called out in distress, and I rescued you;
I answered you from the cloud of thunder;
I tested you at the waters of Meribah. 81:7 Meribah means quarreling; see Exodus 17:7.
Selah
Hear, O My people, and I will warn you:
O Israel, if only you would listen to Me!
There must be no strange god among you,
nor shall you bow to a foreign god.
10 I am the LORD your God,
who brought you up out of Egypt.
Open wide your mouth,
and I will fill it.
 
11 But My people would not listen to Me,
and Israel would not obey Me.
12 So I gave them up to their stubborn hearts
to follow their own devices.
13 If only My people would listen to Me,
if Israel would follow My ways,
14 how soon I would subdue their enemies
and turn My hand against their foes!
15 Those who hate the LORD would feign obedience,
and their doom would last forever.
16 But I would feed you the finest wheat;
with honey from the rock I would satisfy you.”

*^ 81:0 Gittith is probably a musical or liturgical term; here and in Psalms 8 and 84.

81:5 81:5 Or in Joseph

81:7 81:7 Meribah means quarreling; see Exodus 17:7.