Definitions (Strong's Concordance):
1. Sheol (#7585): Hebrew term (Deut. 32.22; 2 Sam. 22.6; Job 11.8; 26.6; Ps. 9.17 16.10; 18.5; 55.15; 86.13; 116.3; 139.8; Prov. 5.5; 7.27; 9.18; 15.11, 24; 23.4; 27.20; Isa. 5.14; 14.9, 15; 28.15, 18; 57.9; Ezek. 31.16, 17; 32.21, 27; Amos 9.2; Jonah 2.2; Hab. 2.5): "From 7592; hades or the world of the dead (as if a subterranean retreat), include. Its accessories and inmates:--grave, hell, pit."
2. Gehenna (#1067) or Valley of Hinnom: Greek terms (Matt. 5.22, 29; 10.28; 18.9; 23.15, 33; Mk. 9.43, 45, 47; Lk. 12.5; Jas. 3.6): "Of Heb. (1516 and 2011); valley of (the son of) Hinnom; gehenna (or Ge-Hinnom), a valley of Jerus., used (fig.) as a name for the place (or state) of everlasting punishment:--hell."
3. Hades (#86): Greek term (Matt. 11.23; 16.18; Lk. 10.15; 16.23; Acts 2.27, 31; Rev. 1.18; 6.8; 20.13, 14): "From 1 (as a neg. particle) and 1402; prop. Unseen, i.e. "Hades" or the place (state) of departed souls:--grave, hell."
4. Grave (#5020) or Tomb or Sepulcher: Greek term (2 Pet. 2.4): "From "Tartaros" (the deepest abyss of Hades); to incarcerate in eternal torment:--cast down to hell."
APPLICATION (Scriptural Examples)
A. Deuteronomy 32.22: "For a fire is kindled in mine anger, and shall burn unto the lowest hell, and shall consume the earth with her increase, and set on fire the foundations of the mountains."
B. 2 Samuel 22.6: "The sorrows of hell compassed me about; the snares of death prevented me."
C. Job 26.6: "Hell is naked before him, and destruction hath no covering." (Other Scriptures within Job wherein the word "hell" is employed: 11.8.)
D. Psalm 9.17: "The wicked shall be turned into hell, and all the nations that forget God." (Other Scriptures within Psalms wherein the word "hell" is employed: Ps. 16.10; 18.5; 55.15; 86.13; 116.3; 139.8.)
E. Proverbs 15.11: "Hell and destruction are before the LORD: how much more then the hearts of the children of men?" (Other Scriptures within Proverbs wherein the word "hell" is employed: Prov. 5.5; 7.27; 9.18; 15.24; 23.4; 27.20.)
F. Isaiah 5.14: "Therefore hell hath enlarged herself, and opened her mouth without measure: and their glory, and their multitude, and their pomp, and he that rejoiceth, shall descend into it." (Other Scriptures within Isaiah wherein the word "hell" is employed: Isa. 14.9, 15; 28.15, 18; 57.9.)
G. Ezekiel 32.27: "And they shall not lie with the mighty that are fallen of the uncircumcised, which are gone down to hell with their weapons of war: and they have laid their swords under their heads, but their iniquities shall be upon their bones, though they were the terror of the mighty in the land of the living." (Other Scriptures within Ezekiel wherein the word "hell" is employed: Ezek. 31.16, 17; 32.21.)
H. Amos 9.2: "Though they dig into hell, thence shall mine hand take them; though they climb up to heaven, thence will I bring them down."
I. Jonah 2.2: "And said, I cried by reason of mine affliction unto the LORD, and he heard me; out of the belly of hell cried I, and thou heardest my voice."
J. Habakkuk 2.5: "Yea also, because he transgresseth by wine, he is a proud man, neither keepeth at home, who enlargeth his desire as hell, and is as death, and cannot be satisfied, but gathereth unto him all nations, and heapeth unto him all people."
K. Jesus:
1. Matthew 5.22: "But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire."
2. Matthew 5.29-30: "And if thy right eye offend thee, pluck it out, and cast it from thee: for it is profitable for thee that one of thy members should perish, and not that thy whole body should be cast into hell. And if thy right hand offend thee, cut it off, and cast it from thee: for it is profitable for thee that one of thy members should perish, and not that thy whole body should be cast into hell."
3. Matthew 10.28: "And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell."
4. Matthew 11.23: "And thou, Capernaum, which art exalted unto heaven, shalt be brought down to hell: for if the mighty works, which have been done in thee, had been done in Sodom, it would have remained until this day."
5. Matthew 16.18: "And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it."
6. Matthew 23.15: "Woe unto you, scribes and Pharisees, hypocrites! for ye compass sea and land to make one proselyte, and when he is made, ye make him twofold more the child of hell than yourselves."
7. Matthew 23.33: "Ye serpents, ye generation of vipers, how can ye escape the damnation of hell?"
8. Luke 16.23: "And in hell he lift up his eyes, being in torments, and seeth Abraham afar off, and Lazarus in his bosom."
(Other Scriptures in which Jesus uses the word "hell:" Matt. 18.9; Mk. 9.43, 45, 47; Lk. 10.15; 12.5.)
L. Acts 2.31: "He seeing this before spake of the resurrection of Christ, that his soul was not left in hell, neither his flesh did see corruption." (Other Scriptures within Acts wherein the word "hell" is employed: Acts 2.27.)
M. James 3.6: "And the tongue is a fire, a world of iniquity: so is the tongue amongour members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell."
N. 2 Peter 2.4: "For if God spared not the angels that sinned, but cast them downto hell, and delivered them into chains of darkness, to be reserved unto judgment."
O. Revelation 1.18: "I am he that liveth, and was dead; and, behold, I am alive forvermore, Amen; and have the keys of hell and of death."
P. Revelation 6.8: "And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth."
Q. Revelation 20.13: "And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works. And death and hell were cast into the lake of fire. This is the second death."
http://www.rchristopherministries.org/P90026.html
http://www.sounddoctrine.com/fifty.htm
http://www.bright.net/~bkrajcik/realityofhell.htm
http://www.jesus-is-lord.com/dayoflrd.htm