Continuing on the same theme as the last post which had to do with hearing God speak, I wan to take that thought a bit further. The text clearly indicates that not only has God spoken in the past, but continued to speak through His Son, Jesus Christ.
Far from God being silent, God, though unseen, has made Himself known to mankind. This passage tells us that God has spoken in times past through His prophets who declared God's Words of warning and comfort. Through the prophets, God gave instruction in righteousness and direction for their lives. The prophets also foretold of the coming of Messiah, Who, when He came, continued revealing the Word of God to man.
God has also spoken through His creation. Psalm 19 speaks of God's divine "look at Me!" where it is written, "The Heavens declare the glory of God..." The word "declare" means "to score with a mark as a tally or record, i.e. (by implication) to inscribe, and also to enumerate; intensively, to recount, i.e. celebrate:"
Also the word translated "showeth" means " to front, i.e. stand boldly out opposite; by implication (causatively), to manifest; figuratively, to announce (always by word of mouth to one present); specifically, to expose, predict, explain, praise:
(Biblesoft's New Exhaustive Strong's Numbers and Concordance with Expanded Greek-Hebrew Dictionary. Copyright (c) 1994, Biblesoft and International Bible Translators, Inc.)
In other words, God has clearly demonstrated His power and His very existence by His Creation for anyone who wants to believe. This psalm goes on to show that God has further revealed Himself through His Word...to which the Apostle John gives witness that this Word 'became flesh and dwelt among us" (John 1:14). So again, God has declared Himself in General Revelation, through Creation and by Special Revelation, in His Word, both written and Incarnate.
So, it is not so much a matter of whether or not God has spoken, but rather it is a question of what one does with what God has said. One may believe, or disbelieve. The choice is up to the individual, but, one should not be hasty in making such a decision, for the answer has eternal ramifications. Sadly, many will ignore what the Bible and science has to say about Divine Creation without giving due consideration.
It really comes down to your answer to the question "What is it to me?" This is the ultimate question we must all answer. If God has indeed spoken, what is it to me? What does that mean/matter to me? If He has not spoken, i.e., if there is no God, then, what does that mean/matter? If, on the other hand, there is a God, and if He has spoken, and if this World and His Word are evidences thereof...doesn't in just make sense to see what it is that He has said and to learn why His Son came?
Back in 1964, Billy Graham was making one of his first Christian films entitled The Restless Ones. He asked Ralph Carmichael to wrote a song for that movie. Carmichael did write such a song. It is called "He's Everything To Me". Check it out on Youtube and give it a listen!