There are eight major categories from the Scripture.
1. Through the Word of God
Proverbs 4:20-22 (NKJV): My son, give attention to my words; Incline your ear to my sayings. Do not let them depart from your eyes; Keep them in the midst of your heart; For they are life to those who find them, and health to all their flesh.
2 Timothy 3:16-17 (NKJV): All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work.
John 1:1-3 (NKJV): In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things were made through Him, and without Him nothing was made that was made.
1 Corinthians 12:7-10 (NKJV): But the manifestation of the Spirit is given to each one for the profit of all: for to one is given the word of wisdom through the Spirit, to another the word of knowledge through the same Spirit, to another faith by the same Spirit, to another gifts of healings by the same Spirit, to another the working of miracles, to another prophecy, to another discerning of spirits, to another different kinds of tongues, to another the interpretation of tongues.
3. Through dreams and visions
Matthew 2:13-14 (NKJV): Now when they (wise men from the east) had departed, behold, an angel of the Lord appeared to Joseph in a dream, saying, "Arise, take the young Child and His mother, flee to Egypt, and stay there until I bring you word; for Herod will seek the young Child to destroy Him." When he arose, he took the young Child and His mother by night and departed for Egypt, and was there until the death of Herod...
Acts 9:10-12 (NKJV): Now there was a certain disciple at Damascus named Ananias; and to him the Lord said in a vision, "Ananias." And he said, "Here I am, Lord." So the Lord said to him, "Arise and go to the street called Straight, and inquire at the house of Judas for one called Saul of Tarsus, for behold, he is praying. And in a vision he has seen a man named Ananias coming in and putting his hand on him, so that he might receive his sight."
4. Through your conscience or inner witness
Romans 2:14-15 (NLT): Even Gentiles, who do not have God’s written law, show that they know his law when they instinctively obey it, even without having heard it. They demonstrate that God’s law is written in their hearts, for their own conscience and thoughts either accuse them or tell them they are doing right.
5. Through God’s voice
1 Kings 19:11-13 (NKJV): Then He said, "Go out, and stand on the mountain before the Lord." And behold, the Lord passed by, and a great and strong wind tore into the mountains and broke the rocks in pieces before the Lord, but the Lord was not in the wind; and after the wind an earthquake, but the Lord was not in the earthquake; and after the earthquake a fire, but the Lord was not in the fire; and after the fire a still small voice. So it was, when Elijah heard it, that he wrapped his face in his mantle and went out and stood in the entrance of the cave. Suddenly a voice came to him, and said, “What are you doing here, Elijah?”
6. Through prophecies given to you
1 Thessalonians 5:20-22 (Amplified): Do not scorn or reject gifts of prophecy or prophecies [spoken revelations - words of instruction or exhortation or warning]. But test all things carefully [so you can recognize what is good]. Hold firmly to that which is good. Abstain from every form of evil [withdraw and keep away from it].
7. Through angels
Acts 10:3-8 (NKJV): About the ninth hour of the day he saw clearly in a vision an angel of God coming in and saying to him, "Cornelius!" And when he observed him, he was afraid, and said, "What is it, lord?" So he said to him, "Your prayers and your alms have come up for a memorial before God. Now send men to Joppa, and send for Simon whose surname is Peter. He is lodging with Simon, a tanner, whose house is by the sea. He will tell you what you must do." And when the angel who spoke to him had departed, Cornelius called two of his household servants and a devout soldier from among those who waited on him continually. So when he had explained all these things to them, he sent them to Joppa.
8. Through circumstances or happenings in life
Matthew 10:11-13 (NKJV): "Now whatever city or town you enter, inquire who in it is worthy, and stay there till you go out. And when you go into a household, greet it. If the household is worthy, let your peace come upon it. But if it is not worthy, let your peace return to you."
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