The modern version of the gospel has been watered down to knowledge: knowing the essential doctrines, the basic tenants of the scriptures. In this knowledge people believe they are saved. Let me explain further. Many denominations have a list of doctrines that they supposedly adhere to. These are "beliefs" about God, the Son of God, and the Holy Spirit; and about the Bible, etc. Some denominations include beliefs on how one is saved, some do not. But all denominations imply that theirs is the correct belief. None instruct us on the unity of the faith and the doctrine of anti-denominationalism that is taught by Paul in Corinthians, because all have fallen from this basic teaching of the Lord Jesus, that we are to be one, even as He and the Father are one, and we are to be in Him. But without diverting to that "essential truth," let's discuss knowledge.
Can knowledge of the Son of God save you? Knowledge about God and correct doctrine seems essential to all churches, but is knowledge truth? Jesus said, "You shall know the truth, and the truth shall make you free." There is certainly a multiple meaning in this statement. Jesus said at another time: "I am the way, the truth, and the life. No man comes to the Father but by me." Knowing the living Lord Jesus is essential, as is knowing the truth about our sins and our state so that we might repent with the help of God. Paul tells us that "the gospel is the power of God unto salvation to every one that believes." So the truth of the gospel is vital, but the gospel is more than truth... it is the power of God. The gospel is the word from God to man about salvation and how to live this life. It is the knowledge of God and his Son and the Holy Spirit, but, again, it is more than knowledge, it is POWER.
Without power, the power of God, we cannot be saved or be Christians or do anything fruitful. "As many as received him, to them he gave power to become the sons of God...born not of blood or the will of the flesh or the will of men, but of God." Paul said, "And my speech and my preaching was not with enticing words of man's wisdom, but in demonstration of the Spirit and of power: 5 That your faith should not stand in the wisdom of men, but in the power of God." 1 Cor 2:4-5 (KJV) And again, "But I will come to you shortly, if the Lord will, and will know, not the speech of them which are puffed up, but the power. 20 For the kingdom of God is not in word, but in power." 1 Cor 4:19-20 (KJV)
Today, in so many churches, their Christianity is in word only. There is no power. And this leads me to the topic of this discussion. Can churches or men teach the "truth" of creationism if they have not the power of God? Is the knowledge about God creating all things in 6 days sufficient? Even with all the scientific details of proof added, is this knowledge sufficient or is this knowledge the truth about creation? I would say, "No, it isn't." I would suggest that a religion or religions apart from the true faith of Christ can have the correct knowledge (to a degree) about the Creation and many other Biblical truths, but be void of power and the life of God. And, in effect, they can be leading people astray.