NET Bible
John 1:14 Now the Word became flesh and took up residence among us. We saw his glory – the glory of the one and only,(38) full of grace and truth, who came from the Father.
38tn Or “of the unique one.” Although this word is often translated “only begotten,” such a translation is misleading, since in English it appears to express a metaphysical relationship. The word in Greek was used of an only child (a son [Luke 7:12, 9:38] or a daughter [Luke 8:42]). It was also used of something unique (only one of its kind) such as the mythological Phoenix (1 Clem. 25:2). From here it passes easily to a description of Isaac (Heb 11:17 and Josephus, Ant., 1.13.1 [1.222]) who was not Abraham’s only son, but was one-of-a-kind because he was the child of the promise. Thus the word means “one-of-a-kind” and is reserved for Jesus in the Johannine literature of the NT. While all Christians are children of God, Jesus is God’s Son in a unique, one-of-a-kind sense. The word is used in this way in all its uses in the Gospel of John (1:14, 1:18, 3:16, and 3:18).
Thus the best choice for translating monogenes when used to describe Jesus is "uniquely divine." After all, we are to speak boldly, plainly and openly, concealing nothing, such as truth.
John 1:14 Now the Word became flesh and took up residence among us. We saw his glory – the glory of the one and only,(38) full of grace and truth, who came from the Father.
38tn Or “of the unique one.” Although this word is often translated “only begotten,” such a translation is misleading, since in English it appears to express a metaphysical relationship. The word in Greek was used of an only child (a son [Luke 7:12, 9:38] or a daughter [Luke 8:42]). It was also used of something unique (only one of its kind) such as the mythological Phoenix (1 Clem. 25:2). From here it passes easily to a description of Isaac (Heb 11:17 and Josephus, Ant., 1.13.1 [1.222]) who was not Abraham’s only son, but was one-of-a-kind because he was the child of the promise. Thus the word means “one-of-a-kind” and is reserved for Jesus in the Johannine literature of the NT. While all Christians are children of God, Jesus is God’s Son in a unique, one-of-a-kind sense. The word is used in this way in all its uses in the Gospel of John (1:14, 1:18, 3:16, and 3:18).
Thus the best choice for translating monogenes when used to describe Jesus is "uniquely divine." After all, we are to speak boldly, plainly and openly, concealing nothing, such as truth.