God has spoken to humanity. He still speaks to humanity. Do you know how? Are you listening?
God has spoken through Jesus Christ.
John 1:1 says that the Word became flesh and lived among us. John 1:14 says, "And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth."
God has spoken through His decrees.
These are found in Genesis in the creation accounts in the early chapters of Genesis. We hear more about this in Psalm 33:6, "By the word of the Lord the heavens were made, and by the breath of his mouth all their host."
God has spoken through direct address.
We hear in Exodus 20:1-3, "And God spoke all these words, saying, “I am the Lord your God, who brought you out of the land of Egypt, out of the house of slavery. “You shall have no other gods before me."
God has spoken through human lips.
This comes through the prophets. Hear Deuteronomy 18:18-20, "I will raise up for them a prophet like you from among their brothers. And I will put my words in his mouth, and he shall speak to them all that I command him. And whoever will not listen to my words that he shall speak in my name, I myself will require it of him." We also see this in the New Testament through the Gospel writers and the writers of the Apostles. Listen to 1 Corinthians 14:37, "If anyone thinks that he is a prophet, or spiritual, he should acknowledge that the things I am writing to you are a command of the Lord." Here Paul is calling all of those that believe they are called to speak on behalf of God should be certain they are speaking consistently with the Word of God.
This leads to the final way God speaks.
God has spoken through the written Word which is the Bible.
Hear God's command to Isaiah which helps us understand God's desire for His Word to be recorded. Isaiah 30:8, "And now, go, write it before them on a tablet and inscribe it in a book, that it may be for the time to come as a witness forever."
God loves us. He desires to communicate with us. Will you listen?