What is the ONE-unique distinguishing doctrine that separates the born again Christian from every religion or cult in the World?

Recently, a FB contributor mocked the idea of Jesus’ deity pointing to John 11:35, “Jesus wept,” suggesting that God would not or could not cry. Jesus is God and God possesses emotions, feelings, desires as God is love (1 John 4:8). Jesus wept over His people (Jacob’s children), the people He set-apart for His covenants, His blessing, the people He would die for, to redeem, the people He chose before the beginning of Time to proselytize the World with the Gospel and be a blessing to every family of the Earth (Genesis 12:3). Jesus wept over their rejection of Him as their Messiah, the One promised them through the prophets, through the Torah, through the Law. Jesus wept over Jacob’s children and their decision to die in Hell and the demands they would make to have His blood be upon them and their children. Jesus wept bitterly for those He loves who would never know His purpose for having entered the Realm of Time (Romans 9:27; Isaiah 10:22).

The uniqueness of true Christianity?

What is the ONE-distinguishing doctrine that separates the true “born again” Christian, those who have sincerely trusted in Jesus as Lord and have subsequently received the indwelling Holy Spirit as Guarantor of covenant relationship with the Father, from every religion and cult of the World? That one distinguishing characteristic or doctrine that sets-apart the true Christian from every religion is the knowledge and understanding, the sincere belief, that Jesus is God-Elohim-Yahweh having manifested in flesh for the primary purpose of destroying the works of the Devil (1 John 3:8b). If a man or woman names the Name of Jesus Christ as Lord, Messiah, Savior, yet denies He is God in flesh, they do not know Jesus, they do not possess the Holy Spirit, they do not enjoy covenant relationship with God the Father, they are not born again by the Spirit, they remain in their sins; they are headed to perdition in unbelief. It is the indwelling Holy Spirit that reveals the eternal truth that Jesus is God and if a person is absent the Holy Spirit, they are absent life in God’s Kingdom, they are absent eternal life, they are lost and existing in hopelessness.

22 Who is the liar, if it is not the one who denies that Jesus is the Christ? This is the antichrist, who denies the Father and the Son. 23 Whoever denies the Son does not have the Father, but whoever confesses the Son has the Father as well. 1 John 2:22-23 (Berean Study Bible)