It is obvious that human efforts alone will not succeeded in finding the truth about life, and it seems that they never will.
There is good reason, then, to conclude that some kind of divine revelation is necessary. What many call the book of nature provides some revelation. Even if it does not give conclusive details about the origin of life, it does show that there is something far more satisfactory than a purely materialistic explanation of life. . Jesus himself confirms this with the words: “Your word is truth.”—John 17:17.
And a noted student of law and religion thus had a basis for concluding: “[God’s] invisible qualities are clearly seen from the world’s creation onward, because they are perceived by the things made.”—Romans 1:20.
Some thinking people, however, consider some pertinent questions. If truth were not attainable, why would Jesus Christ say: “You will know the truth, and the truth will set you free”?
And why would one of Jesus’ apostles say that God’s will is that “all sorts of men should be saved and come to an accurate knowledge of truth”?
Why does the word “truth” occur over a hundred times in the Christian Greek Scriptures in connection with faith? Yes, why, if truth is unattainable?—John 8:32; 1 Timothy 2:3, 4.
And yet he said: “True worshipers will worship the Father with spirit and truth, for, indeed, the Father is looking for suchlike ones to worship him. God is a Spirit, and those worshiping him must worship with spirit and truth.”—John 4:23, 24.
So just early Christians referred to their faith as “the truth, what was truth for them must also be truth for us today, simple for some.