David declares, Thou shalt, meaning Thou wilt hear my voice
humble supplicants are always welcome; they can never approach at an inappropriate time.
Let us consider how David expresses his pious determination to remain faithful to this duty.
A. "My voice shalt thou hear"
David's words here can be understood in two ways:
1. As an expression of faith in God's gracious acceptance David declares, Thou shalt, meaning Thou wilt hear my voice when, in the morning, I direct my prayer to Thee. This is the language of faith, grounded in God's promise that His ear will always be open to His people's cries. David had already prayed earlier in the psalm: Give ear to my words, O Lord (verse 1) and Hearken unto the voice of my cry (verse 2). Here, he expresses confidence in God's response: Thou wilt hear, I do not doubt it. Even if the specific request he prayed for is not granted immediately, he is assured that his prayer is heard and accepted. His prayer ascends as a memorial before God, as Cornelius's prayer did. It is recorded and will not be forgotten.
If we examine our own hearts and see evidence that God has prepared them for prayer, we can confidently look ahead and trust that He will incline His ear to hear us. We can be sure of this and must pray with the assurance that God is a prayer-hearing God. Wherever there is a praying heart, God will be found as a prayeranswering God. Even if the voice of prayer is faint or weak, if it comes from a sincere heart, God will hear it with pleasure—prayer is His delight—and He will respond graciously. He has said, I have heard thy prayer; I have seen thy tears.