John 1:1-18 has been covered on many threads and I don't see that covering it again is beneficial, the same is true of John 20:28.
As to Titus 2:13, translators disagree on how this verse is translated.
Titus 2:13-14
13 looking for the blessed hope and the appearing of the glory of our great God and Savior, Christ Jesus; 14 who gave Himself for us, that He might redeem us from every lawless deed and purify for Himself a people for His own possession, zealous for good deeds.
NAS
Jesus Christ is the glory of our God and Savior.
Also your interpretation of Titus 2:13-14 contradicts what Paul wrote in 1 Corinthians 8:6 as well as what Peter preached in Acts 2 and 5.