First of all, didn't Jesus say it means everlasting life to know God and his son? Please read John 17:3. Thank you.
Yes, in John 17:3 Jesus said … that eternal/everlasting life is to know the only true God, and Jesus Christ.
Eternal life is a life with God forever; a relationship with one’s Creator enjoying His love, joy, beauty, goodness, creativity and so much more throughout eternity.
Spiritual death is the condition of being alienated or separated from God. This is the consistent message of the scriptures, not extinction or annihilation. The second death is an ultimate and eternal separation from God. The expression is found four times in the book of Revelation.
This condition is characterized as the second death because it follows physical death; it is designated as
“death” because it is the final and terminal
separation from the LORD (Matthew 7:23; 25:41; 2 Thessalonians 1:9). Try substituting the term “annihilation” for “death” in the Revelation passages and see what happens.
For example:
“He who has an ear, let him hear what the Spirit says to the churches. He who overcomes shall not be hurt by the second “annihilation”. Revelation 2:11
The very expression represents an absurdity. There is absolutely no biblical evidence that the eternal damnation the scriptures refer to will involve the extermination of either Satan, evil angels, or wicked humans
(Matthew 25:41,46; Rev. 14:9-11; 20:10).