Below I have posted two different translations of hell (gehenna & hades, found in the KJV) & applied the Strong’s Concordance translations for each. I believe the Amplified Bible (AMP) breaks down the terms gehenna & hades very well. After the Strong’s Concordance translations I have placed the scriptures pertaining to gehenna & hades from the Amplified Bible (AMP) for easy reference.
Gehenna: #1067. geena gheh'-en-nah of Hebrew origin (1516 and 2011); valley of (the son of) Hinnom; ge-henna (or Ge-Hinnom), a valley of Jerusalem, used (figuratively) as a name for the place (or state) of everlasting punishment:--hell.
Matthew 5:22, 5:29, 5:30, 10:28, 18:9, 23:15, 23:33
Mark 9:43, 9:45, 9:47
Luke 12:5
James 3:6
Hades: #86. haides hah'-dace from 1 (as negative particle) and 1492; properly, unseen, i.e. "Hades" or the place (state) of departed souls:--grave, hell.
Matthew 11:23, 16:18
Luke 10:15, 16:23
Acts 2:27, 2:31
Revelation 1:18, 6:8, 20:13, 20:14
*Gehenna: #1067
Matthew 5:22 (AMP)
22But I say to you that everyone who continues to be angry with his brother or harbors malice (enmity of heart) against him shall be liable to and unable to escape the punishment imposed by the court; and whoever speaks contemptuously and insultingly to his brother shall be liable to and unable to escape the punishment imposed by the Sanhedrin, and whoever says, You cursed fool! [You empty-headed idiot!] shall be liable to and unable to escape the hell (Gehenna) of fire.
Matthew 5:29 (AMP)
29If your right eye serves as a trap to ensnare you or is an occasion for you to stumble and sin, pluck it out and throw it away. It is better that you lose one of your members than that your whole body be cast into hell (Gehenna).
Matthew 5:30 (AMP)
30And if your right hand serves as a trap to ensnare you or is an occasion for you to stumble and sin, cut it off and cast it from you. It is better that you lose one of your members than that your entire body should be cast into hell (Gehenna).
Matthew 10:28 (AMP)
28And do not be afraid of those who kill the body but cannot kill the soul; but rather be afraid of Him who can destroy both soul and body in hell (Gehenna).
Matthew 18:9 (AMP)
9And if your eye causes you to stumble and sin, pluck it out and throw it away from you; it is better (more profitable and wholesome) for you to enter life with only one eye than to have two eyes and be thrown into the hell (Gehenna) of fire.
Matthew 23:15 (AMP)
15Woe to you, scribes and Pharisees, pretenders (hypocrites)! For you travel over sea and land to make a single proselyte, and when he becomes one [a proselyte], you make him doubly as much a child of hell (Gehenna) as you are.
Matthew 23:33 (AMP)
33You serpents! You spawn of vipers! How can you escape the penalty to be suffered in hell (Gehenna)?
Mark 9:43 (AMP)
43And if your hand puts a stumbling block before you and causes you to sin, cut it off! It is more profitable and wholesome for you to go into life [that is really worthwhile] maimed than with two hands to go to hell (Gehenna), into the fire that cannot be put out.
Mark 9:45 (AMP)
45And if your foot is a cause of stumbling and sin to you, cut it off! It is more profitable and wholesome for you to enter into life [that is really worthwhile] crippled than, having two feet, to be cast into hell (Gehenna).
Mark 9:47 (AMP)
47And if your eye causes you to stumble and sin, pluck it out! It is more profitable and wholesome for you to enter the kingdom of God with one eye than with two eyes to be thrown into hell (Gehenna),
Luke 12:5 (AMP)
5But I will warn you whom you should fear: fear Him Who, after killing, has power to hurl into hell (Gehenna); yes, I say to you, fear Him!
James 3:6 (AMP)
6And the tongue is a fire. [The tongue is a] world of wickedness set among our members, contaminating and depraving the whole body and setting on fire the wheel of birth (the cycle of man's nature), being itself ignited by hell (Gehenna).
*Hades: #86
Matthew 11:23 (AMP)
23And you, Capernaum, are you to be lifted up to heaven? You shall be brought down to Hades [the region of the dead]! For if the mighty works done in you had been done in Sodom, it would have continued until today.
Matthew 16:18 (AMP)
18And I tell you, you are Peter [Greek, Petros--a large piece of rock], and on this rock [Greek, petra--a huge rock like Gibraltar] I will build My church, and the gates of Hades (the powers of the infernal region) shall not overpower it [or be strong to its detriment or hold out against it].
Luke 10:15 (AMP)
15And you, Capernaum, will you be exalted unto heaven? You shall be brought down to Hades (the regions of the dead).
Luke 16:23 (AMP)
23And in Hades (the realm of the dead), being in torment, he lifted up his eyes and saw Abraham far away, and Lazarus in his bosom.
Acts 2:27 (AMP)
27For You will not abandon my soul, leaving it helpless in Hades (the state of departed spirits), nor let Your Holy One know decay or see destruction [of the body after death].
Acts 2:31 (AMP)
31He, foreseeing this, spoke [by foreknowledge] of the resurrection of the Christ (the Messiah) that He was not deserted [in death] and left in Hades (the state of departed spirits), nor did His body know decay or see destruction.
Revelation 1:18 (AMP)
18And the Ever-living One [I am living in the eternity of the eternities]. I died, but see, I am alive forevermore; and I possess the keys of death and Hades (the realm of the dead).
Revelation 6:8 (AMP)
8So I looked, and behold, an ashy pale horse [black and blue as if made so by bruising], and its rider's name was Death, and Hades (the realm of the dead) followed him closely. And they were given authority and power over a fourth part of the earth to kill with the sword and with famine and with plague (pestilence, disease) and with wild beasts of the earth.
Revelation 20:13 (AMP)
13And the sea delivered up the dead who were in it, death and Hades (the state of death or disembodied existence) surrendered the dead in them, and all were tried and their cases determined by what they had done [according to their motives, aims, and works].
Revelation 20:14 (AMP)
14Then death and Hades (the state of death or disembodied existence) were thrown into the lake of fire. This is the second death, the lake of fire.