Prove all things; hold fast that which is good. (1 Thessalonians 5:21 KJV)
Many people said that all religions are the same. They all teach us to be good.
This is not true. We must first know if something is true or false before we talk about whether it is good and bad. If you do something good for what is false, you are helping to spread a lie.
The first to state his case seems right until another comes and cross-examines him. (Proverbs 18:17 BSB, CSB)