There are countless religions throughout this world. Within Christianity there are untold numbers of churches with various doctrines. There is raging disagreement over doctrines.
However, we must be reminded that the Apostle Paul, the apostle to the Gentiles explained during his ministry, said: “According to the grace of God which is given unto me, as a wise master builder, I have laid the foundation, and another buildeth thereon. [BUT LET EVERY MAN TAKE HEED HOW HE BUILDETH THEREUPON]. For other foundation can no man lay than that is laid, which is JESUS CHRIST” (1 Corinthians 3:10–11).
“For there is [ONE GOD, AND ONE MEDIATOR BETWEEN GOD AND MEN, THE MAN CHRIST JESUS]: who gave himself a ransom for all, to be testified in due time” (1 Timothy 2:5–6).