The Watchtower says:
9 While most major books of religion say very little, if anything, about God, the Bible acquaints us with Jehovah God and his activities. It helps us to see the many facets of his personality. The Bible reveals God not only as an all-powerful, wise, and just God but also as a God who loves us. (Read John 3:16; 1 John 4:19.).... (w12 6/15 pp. 25-29, paragraph 9)
Of course, let us read the following facet of his personality:
2 Thus saith the Lord of hosts, I remember that which Amalek did to Israel, how he laid wait for him in the way, when he came up from Egypt.
3 Now go and smite Amalek, and utterly destroy all that they have, and spare them not; but slay both man and woman, infant and suckling, ox and sheep, camel and ass. (1 Samuel 15:2-3)
So, Jehovah God ordered to kill without mercy all Amalekites, even innocent children, because of what this people did some centuries before. It was in accordance of Jehovah's law:
5 You must not bow down to them nor be induced to serve them, because I Jehovah your God am a God exacting exclusive devotion, bringing punishment for the error of fathers upon sons, upon the third generation and upon the fourth generation, in the case of those who hate me; 6 but exercising loving-kindness toward the thousandth generation in the case of those who love me and keep my commandments.(Exodus 20:5-6)
So, sons die for the fathers’ sins. But wait a minute. I found other verse who states the contrary:
The soul that is sinning—it itself will die. A son himself will bear nothing because of the error of the father, and a father himself will bear nothing because of the error of the son. Upon his own self the very righteousness of the righteous one will come to be, and upon his own self the very wickedness of a wicked one will come to be. (Ezekiel 18:20)
So, many centuries later, Jehovah God changed his view, now sons do not die for the fathers’ sins.
The Watchtower says:
Moreover, the Bible tells us: “God is not partial, but in every nation the man that fears him and works righteousness is acceptable to him.” (Acts 10:34, 35) (w12 6/15 pp. 25-29, paragraph 9)
This seems not to be the case for the God of the Old Testament. Let's read the following verse:
Do not eat anything you find already dead. You may give it to the foreigner residing in any of your towns, and they may eat it, or you may sell it to any other foreigner. But you are a people holy to the LORD your God. (Deuteronomy 14:21)
So in other words: "let the pagans eat rubbish, because you are a holy race, but they are dirty men". So, this reading can't be spiritual food for those who are not Jews.
Then the Watchtower says:
EVIDENCE THAT HAS CONVINCED MANY
13 There is other evidence of the Bible’s inspiration: the internal harmony, scientific accuracy, fulfilled prophecies, unusual candor, power to transform lives, historical soundness, and satisfying answers to the questions mentioned in paragraph 1. ....(w12 6/15 pp. 25-29, paragraph 13)
About internal harmony, there are more than 100 contradictory statements in the Bible. See them in this link:
http://www.answering-christianity.com/101_bible_contradictions.htm
About scientific acuracy, read how this is false in the following link:
http://www.internetmonk.com/archive/misreading-the-bibles-scientific-accuracy
About fulfilled prophecies, The Bible rarely predicts the future with accuracy, even the Bible admits that one prophecy failed. Ezekiel prophecied that Tyre would be destroyed by Nebuchadnezzar, but it did not happen:
Son of man, Nebuchadnezzar king of Babylon used his army to labor strenuously against Tyre; every head was made bald, and every shoulder rubbed raw; yet neither he nor his army received wages from Tyre, for the labor which they expended on it (Ezekiel, 29:18-19).
For more about Ezekiel's prophecy against Tyre, read the following link:
http://www.theskepticalreview.com/TSRmag/5error96.html
Furthermore, the Ezekiel's prophecy about the 40 years of desolation of Egypt did not happen. The records clearly prove that Egypt was never desolated for 40 years. Read the following links for a detailed analysis:
http://www.theskepticalreview.com/tsrmag/992front.html
http://www.sanityquestpublishing.com/essays/BabEgypt.html
And here is where Leolaia presented one of the most detailed records of Amasis' reign, which prove that Nebuchadnezzar could not desolate the land of Egypt:
http://www.jehovahs-witness.net/watchtower/bible/186163/4/Ezekiel-29-12-Prophecy-of-the-Desolation-of-Egypt-for-40-years#.U83JxXLyOPs
Also, one of the most prophetic books of the Old Testament, the Book of Daniel, is a forgery of the second century BCE. To prove this, read
"Good History in the Book of Daniel" by Farrell Till, in the following link
http://www.theskepticalreview.com/tsrmag/985good.html