"Seek the Lord while he may be found; call on him while he is near."
This verse seems to carry a timetable. "While he may be found" implies there will be a time when God will no longer be "findable."
That doesn't necessarily mean that God will change. I believe it means there is a time when we might quit seeking. We might let the things of this world mean so much to us that we no longer have the desire to seek Him. At some point we may become content with the status quo and not look for anything beyond ourselves. Eventually we harden our hearts to the point where no one could drag us to the Lord with a winch.
The verses that follow challenge us to come out of ourselves and become what God would have us to be. He has a vision for each of our lives that is beyond what we can hope or imagine. If we fall back into the "content with what is" category, we will never realize the full potential that God has given us.
He assures us that His word does not come back void, but it accomplishes the purpose for which He sent it forth. When we take God at His word, we can never be disappointed. The vision He will give you as you seek Him will come to fruition in your obedience.
There is a promise of joy and peace in our obedience to Him. And there is also exultation. In the words of the song "The hills are alive with the sound of music." We have been promised a celebration. Let's party.
Thank You for being as near to us as our next breath. Keep our hearts soft and searching to know You better, to hear Your word more precisely, to move in instantaneous obedience to Your directives.
In Jesus' most precious name.