The first, and most important thing we will consider about the Ten Commandments, is that God Himself spoke them directly to Israel.

Exo 20:1 And God spake all these words, saying,

Although all of the Bible is verbally inspired—meaning that God moved certain men to pen down the actual Word of God—in many cases, what God had these men write was concerning their life experiences—what they had seen and heard as it related to God and His purposes. They also penned what they had learned and had been revealed to them by God directly and indirectly. God also used the personalities of these men in what they wrote—as we can certainly ascertain the different styles by which they wrote. However, from beginning to end, the Bible is one book with One Author—it is the Word of God.

2 Pet 1:21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.

2 Pet 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:

In a some instances however, these men recorded the very Word that God spoke, and the Scripture plainly indicates that He did so.

Gen 1:3 And God said, Let there be light: and there was light.

Gen 6:3 And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.

Matt 3:16 And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him:
17 And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.

Of course all the words that Jesus spoke are truly the Words of God because He is God.

Matt 5:1And seeing the multitudes, he went up into a mountain: and when he was set, his disciples came unto him:
2 And he opened his mouth, and taught them, saying,
3 Blessed are the poor in spirit: for theirs is the kingdom of heaven.

John 1:1 In the beginning was the Word, and the Word was with God, and the Word was God.

John 1:14 And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.

Now this does not mean that what God actually spoke is anymore the Word of God than the rest of Scripture, but it does indicate to us many things. (1) God wants to make it clear that these are His actual Words. (2) Because these are His actual Words there can be no misinterpretation about what He may have intended to say through His prophets. (3) Because it is so plainly indicated that these are His actual Words, there is no middle ground upon which we can stand concerning what we believe—we either believe in God and accept what He has said, or we reject the God of the Bible and anything contained in it as being His word.

1 Thess 2:13 For this cause also thank we God without ceasing, because, when ye received the word of God which ye heard of us, ye received it not as the word of men, but as it is in truth, the word of God, which effectually worketh also in you that believe.

John 12:48 He that rejecteth me, and receiveth not my words, hath one that judgeth him: the word that I have spoken, the same shall judge him in the last day.

Therefore, because we accept the Bible as the Word of God, we conclude that the Ten Commandments came from the very heart and mouth of God—but that is not the end of the matter. Although many would teach that because these laws so plainly came from God, we ought to diligently obey them. However, in their misguided zeal, they ignore what the rest of the Scriptures teach concerning them. Questions such as—To whom were they given? For what purpose were they given? Is there a more spiritual meaning connected to them? What applications for them can we make in our lives today?—and more, all beg to be answered. Furthermore, because the Bible is a spiritual book, not everything we read can be plainly interpreted by man’s reasoning ability. The Holy Spirit—who inspired the Bible—must also be the One who interprets to us the Bible. Therefore, it is to Him that we humbly look for the answer to our inquiries.

John 6:63 It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.

1 Cor 2:13 Which things also we speak, not in the words which man's wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual.
14 But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

2 Pet 1:20 Knowing this first, that no prophecy of the scripture is of any private interpretation.
21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.