Calling Out to God #29

Psalm 95 is known as the Great Call to Worship, where we are called to come together and see the Great Creator as our Great Savior:

Oh come, let us sing to the Lord;
    let us make a joyful noise to the rock of our salvation!
2 Let us come into his presence with thanksgiving;
    let us make a joyful noise to him with songs of praise!
3 For the Lord is a great God,
    and a great King above all gods.
4 In his hand are the depths of the earth;
    the heights of the mountains are his also.
5 The sea is his, for he made it,
    and his hands formed the dry land.
6 Oh come, let us worship and bow down;
    let us kneel before the Lord, our Maker!
7 For he is our God,
    and we are the people of his pasture,
    and the sheep of his hand.
Today, if you hear his voice,
8     do not harden your hearts, as at Meribah,
    as on the day at Massah in the wilderness,
9 when your fathers put me to the test
    and put me to the proof, though they had seen my work.

The Great Creator who made the mountains is the rock of our salvation, worthy of both praise and thanksgiving. What we rarely get to are the last two verses, which are introduced by this phrase: Today, if you hear his voice, - notice he says "if". Can you hear God's voice calling you to come talk with Him. Since this is a corporate call to worship: can we hear God's voice calling us to worship and fellowship with Him? Or are we developing a hardness of heart, where all we do is complain about God, to God, and forgetting His work as Creator and Savior, we stop listening to God and seeking His face.  Can we hear Him? Can He hear us? Or have we stopped talking to Him?