OPEN your MOUTH WIDE and GOD will FILL it: "I am the Lord your God, who brought you out of the land of Egypt; open your mouth wide, and I will fill it." (Psalms 81:10)
In Psalm 81, the psalmist Asaph requests the Israelites to observe the festival because of God’s faithfulness in the past in delivering Israel from Egypt (v. 6) and providing for her in the wilderness (v. 7). Israel had rebelled against God in the past and was still continuing in rebellion (v. 13). If only the people would repent, God would forgive them and enable them to prevail over their enemies (v. 14).
In the middle of this discourse, Asaph points out in verse 10 that because God had brought them out of the clutches of slavery in Egypt, He could do great things for them. God had proved his power over the mighty Egyptian empire and it required that the Israelites believe in God and ask great things from Him. Just like the little birds in the nest open their mouths wide for food and the parent birds fills them, God will fill the deepest need of His children when they open their mouths wide to Him!
What is meant by opening our mouths wide? This may mean being fervent in our prayers, being unashamed with our petitions to God, and having enlarged hope and expectations from God. One example of a prayer that God challenges us to pray with enlarged hope and expectation is found in Psalms 2:8: "Ask of Me, and I will give you the nations for Your inheritance, and the ends of the earth for Your possession." By praying in this expansive manner, we increase our ability to pray, and receive greater things from God. God will then fill our mouths with abundant thanksgivings when we see the answers of our prayers right before our eyes. We shall also be filled with those blessings that we pray for: "And my God shall supply all your need according to His riches in glory by Christ Jesus." (Phil 4:19) Let us open our mouths wide and see how God fills them in the coming days!
"Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you. For everyone who asks receives, and he who seeks finds, and to him who knocks it will be opened. Or what man is there among you who, if his son asks for bread, will give him a stone? Or if he asks for a fish, will he give him a serpent? If you then, being evil, know how to give good gifts to your children, how much more will your Father who is in heaven give good things to those who ask Him!" (Matt 7:7-11)