Hopefully making theology simpler to understand! (2 Corinthians 1:12)

For the word of the cross is folly to those who are perishing, but to us who are being saved it is the power of God.
1 Corinthians 1:18, ESV

Do not try to convince someone of the truth of the Gospel. Share the truth. Even give evidence.
We merely share the Gospel.
Let the Holy Spirit change their minds.