Inspiration (in the sense we mean here) means God is speaking through a person. The literal meaning is related to breathing or breath. When we speak air comes out of our mouths.  Inspiration is often used commonly to refer to something that is akin to motivation.   That is not what is meant when we say the Bible is inspired by God.    We mean God told us these things.

Inspiration also extends  to the writing down of what a prophet has spoken. Sometimes the prophets wrote things themselves and sometimes  someone else wrote them down in their behalf.    Both what the prophets spoke and  what the copiest recorded  are inspired.

Inspiration does not mean mechanical dictation. God used angels as well as human agency to bring his word to men.  The personalities of the speakers and writers remained intact and God's word remain true through the human agencies.

Acts 7:48-53

[48] Howbeit the most High dwelleth not in temples made with hands; as saith the prophet,
[49] Heaven is my throne, and earth is my footstool: what house will ye build me? saith the Lord: or what is the place of my rest?
[50] Hath not my hand made all these things?
[51] Ye stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Ghost: as your fathers did, so do ye.
[52] Which of the prophets have not your fathers persecuted? and they have slain them which shewed before of the coming of the Just One; of whom ye have been now the betrayers and murderers:
[53] Who have received the law by the disposition of angels, and have not kept it.

Gal. 3:19

[19] Wherefore then serveth the law? It was added because of transgressions, till the seed should come to whom the promise was made; and it was ordained by angels in the hand of a mediator.

Heb 2:1-4

[1] Therefore we ought to give the more earnest heed to the things which we have heard, lest at any time we should let them slip.
[2] For if the word spoken by angels was stedfast, and every transgression and disobedience received a just recompence of reward;
[3] How shall we escape, if we neglect so great salvation; which at the first began to be spoken by the Lord, and was confirmed unto us by them that heard him;
[4] God also bearing them witness, both with signs and wonders, and with divers miracles, and gifts of the Holy Ghost, according to his own will?

2 Tim. 3:14-17

[14] But continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them;
[15] And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.
[16] All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
[17] That the man of God may be perfect, throughly furnished unto all good works.

2 Pet.1:16-21

[16] For we have not followed cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty.
[17] For he received from God the Father honour and glory, when there came such a voice to him from the excellent glory, This is my beloved Son, in whom I am well pleased.
[18] And this voice which came from heaven we heard, when we were with him in the holy mount.
[19] We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts:
[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.