"Be diligent to present yourself approved to God, a worker who does not need to be ashamed, rightly dividing the word of truth. But shun profane and idle babblings, for they will increase to more ungodliness. And their message will spread like cancer. Hymenaeus and Philetus are of this sort (2 Timothy 2:15-17 NKJV)"
By following the above advice and being well versed in scripture ourselves, we shall know the true Christian from the pretender by their spin. They often go into the Hebrew and Greek, but the Bible supports itself alone.
The Old Testament in particular has may pitfalls by way of contradiction, for example the word LORD can be a disaster area. On one hand we read about the LORD:
Exo_10:25 Moses said, "You must let us have sacrifices and burnt offerings to offer to the LORD our God.
Eze_46:4 And the burnt offering that the prince shall offer unto the LORD in the sabbath day shall be six lambs without blemish, and a ram without blemish.
Isa_34:6 The sword of the LORD is filled with blood, it is made fat with fatness, and with the blood of lambs and goats, with the fat of the kidneys of rams: for the LORD hath a sacrifice in Bozrah, and a great slaughter in the land of Idumea.
On the other hand we read:
Isaiah 1:11 NKJV "To what purpose is the multitude of your sacrifices to Me?" Says the LORD. "I have had enough of burnt offerings of rams And the fat of fed cattle. I do not delight in the blood of bulls, Or of lambs or goats.
1 Samuel 15:22 NKJV So Samuel said: "Has the LORD as great delight in burnt offerings and sacrifices, As in obeying the voice of the LORD? Behold, to obey is better than sacrifice, And to heed than the fat of rams.
Psa 40:5-6 Many, O LORD my God, are Your wonderful works Which You have done; And Your thoughts toward us Cannot be recounted to You in order; If I would declare and speak of them, They are more than can be numbered. Sacrifice and offering You did not desire; My ears You have opened. Burnt offering and sin offering You did not require.
We know the LORD requires the sacrifice of the heart, and so we give ourselves to Him. So, it is up to us to be diligent in our study, and then we shall be well armed.