"For there shall arise false Christs, and false prophets" (Matthew 24:24), and that is exactly what these are. The Bible does have all the truth. In fact, regarding the second coming events, "The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass" (Revelation 1:1). And as for the time of love and especially peace, the second coming is described as, "For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape" (1 Thessalonians 5:3).

All the details that are necessary to know about the second coming are spelled out. "[It is] the glory of God to conceal a thing: but the honour of kings [is] to search out a matter" (Proverbs 25:2). So yes, it is hidden to the skeptic's eyes, but for God's royalty, which are those who are true Christians, we are like kings and can understand these things. In other words, "But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know [them], because they are spiritually discerned" (1 Corinthians 2:14).