“Eternal” From Concise Bible Dictionary:
Three Hebrew words are translated “eternal.”
1. ad, very often translated “forever,” and with another word, olam, “forever and ever.” “The Lord shall reign forever and ever” (Ex. 15:18). “The Lord is king forever and ever” (Psa. 10:16: Compare also Psa. 45:6; Psa. 48:14; Psa. 52:8; Mic. 4:5). Ad is also translated “everlasting:” “the everlasting Father,” or “Father of the everlasting age” (Isa. 9:6). Also “eternity”; “the high and lofty One that inhabiteth eternity” (Isa. 57:15).
2. olam, signifying “everlasting,” “never ending.” It is often translated “forever:” “his mercy endureth forever” (1 Chron. 16:41); and “everlasting:” “the everlasting God” (Gen. 21:33; Psa. 90:2; Psa. 93:2; Psa. 103:17). “I will make thee an eternal excellency” (Isa. 60:15).
3. qedem, “ancient, that which is before.” “The eternal God is thy refuge” (Deut. 33:27). “Art thou not from everlasting?” (Hab. 1:12). “God is my King of old” (Psa. 74:12).
4. In the New Testament, ἀϊδιος, “perpetual:” occurs only in Romans 1:20, “his eternal power and Godhead”; and Jude 6, “reserved in everlasting chains.”
5. αἰών “age, duration, ever.” With a preposition “unto the ages” is often translated “forever”; and, when repeated, “forever and ever.” “He that eateth of this bread shall live forever” (John 6:58). “Christ abideth forever” (John 12:34). “To whom be glory forever and ever” (Gal. 1:5). “According to the eternal purpose” (Eph. 3:11). “Now unto the king eternal....be honor and glory forever and ever” (1 Tim. 1:17). This word is often translated “world,” but may at times be better rendered “age,” as “be not conformed to this age” (Rom. 12:2); and “forever and ever” may be translated “to the ages of ages,” though the meaning would be the same.
6. αἰώνιος, from αἰών, signifying “ever enduring.” It is always translated “eternal” or “everlasting,” except in Romans 16:25, “since the world began,” or “in the times of the ages” (2 Tim. 1:9; Titus 1:2); “before the world began,” or, “before the ages of time”; and Philemon 1:15, “forever.” This word is applied to God Himself as “the everlasting God” (Rom. 16:26); to the Holy Spirit (Heb. 9:14); to redemption (Heb. 9:12); inheritance (Heb. 9:15); salvation (Heb. 5:9); glory (1 Peter 5:10); and constantly to life (John 3:15-16, 36). On the other hand it is applied to punishment (Matt. 25:46); damnation (Mark 3:29); destruction (2 Thess. 1:9); and fire (Jude 7: Compare Isa. 33:14).
The above passages show that the same word is used for the existence of God Himself; for the salvation and blessedness of the saved; and for the punishment of the wicked.
“Eternal Life” From Concise Bible Dictionary:
See LIFE, ETERNAL.
“Eternal State” From Concise Bible Dictionary:
A term not found in scripture, but often applied to the future, when the Lord Jesus will deliver up the kingdom to God the Father, and be Himself subject unto Him who put all things under Him, that God may be all in all (1 Cor. 15:24-28; compare Rev. 21:1-8).
“Life, Eternal” From Concise Bible Dictionary:
This stands commonly in scripture in contrast to death. It is revealed in the Lord Jesus. “He is the true God, and eternal life.” “This is the record, that God hath given to us eternal life, and this life is in his Son. He that hath the Son hath life; and he that hath not the Son of God hath not life” (1 John 5:11-12, 20). He that has the Son of God therefore has life now, and knows it by the Holy Spirit, the Spirit of life. The apostle John speaks of life as a subjective state in believers, though inseparable from the knowledge of God fully revealed as the Father in the Son, and indeed characterized by this. The Lord said to His Father, “This is life eternal, that they might know Thee the only true God, and Jesus Christ, whom Thou hast sent” (John 17:3). The Apostle Paul presents eternal life more as a hope before the Christian, which however has a present moral effect (Titus 1:2; Titus 3:7). From which we gather that eternal life for the Christian refers in its fullness to the glory of God, when the present body as a part of the old creation will be changed, and there will be complete conformity to Christ, according to the purpose of God. In the meantime the mind of God is that the Christian, indwelt by the Holy Spirit, should know (have the conscious knowledge) that he has eternal life (1 John 5:13). For Christians it is evident that eternal life is morally distinct from life after the flesh.
Strong’s Dictionary of Greek Words:
Meaning:
from 104; everduring (forward and backward, or forward only)
KJV Usage:
eternal, everlasting