Monogenēs means "only begotten" consistently; modern "unique" push for Jesus' verses dilutes eternal generation.
The Meaning of Monogenēs (Only Begotten) in Scripture and the Push to Alter It for Christological Verses
Immortality vs. Eternal Life: Are They the Same in the Bible? A Precise Exegetical Distinction from 1 Corinthians 15:54 and John 3:16
Immortality is indestructible life granted only through resurrection glory; eternal life is unending life sustained by God, not inherent to human nature.
