Here's the 22nd Psalm -- proof of fulfilled prophecy. It describes a crucifixion (the Messiah's) long before the world knew what it was.
That is knowledge obtained from the Holy Spirit. Man couldn't have thought it up:
1 My God, my God, why have You forsaken me? Far from my deliverance are the words of my groaning.
2 O my God, I cry by day, but You do not answer; And by night, but I have no rest.
3 Yet You are holy, O You who are enthroned upon the praises of Israel.
4 In You our fathers trusted; They trusted and You delivered them.
5 To You they cried out and were delivered; In You they trusted and were not disappointed.
6 But I am a worm and not a man, A reproach of men and despised by the people.
7 All who see me sneer at me; They separate with the lip, they wag the head, saying,
8 "Commit yourself to the LORD; let Him deliver him; Let Him rescue him, because He delights in him."
9 Yet You are He who brought me forth from the womb; You made me trust when upon my mother's breasts.
10 Upon You I was cast from birth; You have been my God from my mother's womb.
11 Be not far from me, for trouble is near; For there is none to help.
12 Many bulls have surrounded me; Strong bulls of Bashan have encircled me.
13 They open wide their mouth at me, As a ravening and a roaring lion.
14 I am poured out like water, And all my bones are out of joint; My heart is like wax; It is melted within me.
15 My strength is dried up like a potsherd, And my tongue cleaves to my jaws; And You lay me in the dust of death.
16 For dogs have surrounded me; A band of evildoers has encompassed me; They pierced my hands and my feet.
17 I can count all my bones. They look, they stare at me;
18 They divide my garments among them, And for my clothing they cast lots.
19 But You, O LORD, be not far off; O You my help, hasten to my assistance.
20 Deliver my soul from the sword, My only life from the power of the dog.
21 Save me from the lion's mouth; From the horns of the wild oxen You answer me.