8:23-24 What profound truth is Jesus declaring here?

Jesus here is declaring His Deity; that He is the I am of the Old Testament. He has been added by the translators. It was not in the original text (CP Ex 3:1-15 with Ac 7:30-38; Isa 43:10, 13, 25; 46:4; 48:12; Jn 8:52-58).

The Jews would know that Jesus was God after they crucified Him by His resurrection to life and His ascension to Heaven and many would come to believe on Him as a result (CP Jn 8:25-30 with Ac 2:36-47; 4:1-4).

See also comments on Lu 1:35(B), and author's studies Jesus - Eternally God in his book Advanced Studies in the Christian Faith (Volume 1), The Doctrine of the Trinity and Jesus in his book Advanced Studies in the Christian Faith (Volume 2).

John:-