2. The Attribute of Truth is a Key Element in Prayer
The Torah tells us that after the Jewish people left Egypt, the Egyptians pursued them to the Sea. The Torah states, "Pharaoh approached; the Children of Yisroel raised their eyes and behold! - Egypt was journeying after them, and they were frightened; the Children of Yisroel cried out to Hashem." It is clearly indicated from this verse that the Jewish people believed that it was within the power of Hashem to save them from the hands of the Egyptians. As it is stated, "and they cried out to Hashem." However, the next statement expressed by the Jews seems contradictory. In the following verse the Torah states, "They said to Moshe, "Were there no graves in Egypt that you took us to die in the Wilderness?" On one hand the Jewish people prayed to Hashem (indicating their firm belief), and yet they spoke to Moshe as if they were heretics, blaming him for taking them out of Egypt to die in the wilderness. How do we understand this?
Rashi cites Chazal who explain that the verse - "they cried out to Hashem" to mean that Jewish people took hold of the "craft" of their forefathers Avraham, Yitzchak, and Yaakov. Just as the Patriarchs prayed to Hashem at various times of need, so too did the Jewish people pray to Hashem at this perilous moment. If the Jewish people truly believed in tefillah (prayer) as their forefathers did, then why did they immediately complain to Moshe about their imminent destruction? The Ramban explains that the Jewish people prayed; however, when Hashem did not immediately respond to them they came to Moshe with their claim. Rashi uses the term they took hold of the "craft" of their forefathers to indicate that they did not pray with the level of conviction and belief in Hashem as their forefathers had done. They merely mimicked the behavior of the Patriarchs by praying in a time of need.
The Jewish people did not truly understand or appreciate tefillah nor did they have relevance to it at this moment. They had just emerged from being idol worshippers in Egypt. However, they were aware of the blessing that Yitzchak had given to his son Yaakov, "Ha'Kol kol Yaakov - the voice is the voice of Yaakov." This indicates that the power of tefillah (prayer) belongs to Yaakov and his decedents. Tefillah is the weapon of the Jew; however, there are certain criteria necessary to give it effectiveness.
What are these criteria? They include the characteristic of self-negation combined with the belief and understanding of tefillah which make it effective. The Jewish people prayed because they knew the Patriarchs had done so. However, they did not have the self-negation or the belief that was possessed by the Patriarchs. Therefore, Hashem did not respond to their prayers immediately and this caused them to complain to Moshe.
We say every day in the Ashrei (the Psalm that is said three times a day), "Hashem is close to all who call upon Him - to all who call upon Him truthfully (b'emes)." On a literal level, one would understand this to mean that when one calls out to Hashem sincerely, He will be close to him. If Hashem is close, then He will respond. On a deeper level, one can understand this verse to mean that Hashem is close to those who possess Emes (truth). If one lives a life of Emes (truth), which is consistent with what is dictated by the Torah then this causes Hashem to be close and to respond. The Gemara in Tractate Shabbos tells us "the signet of Hashem is Emes." Therefore, if a person possesses this attribute then he has a commonality with Hashem, thus causing Hashem to be close to him. However, if one lacks integrity and is not true to what he understands and believes, then he does not possess the attribute of Emes and Hashem will not be close to him.
The ultimate truth -Emes- is Torah. As it is written in Mishlei, "Acquire truth and do not sell it." The Gemara in Tractate Avodah Zarah explains that the acquisition of truth is referring to Torah, which is unadulterated. The Prophet states, "Teetain Emes L'Yaakov - Give truth to Yaakov." Yaakov, our Patriarch, is identified as the "man of truth" because he was the man of Torah. Therefore, one can understand why the weapon of Yaakov was his tefillah- "Ha'Kol kol Yaakov - the voice is the voice of Yaakov." If one possesses Emes, then his voice truly reflects the voice of Yaakov.
The Gemara tells us in a number of locations that Hashem created the yetzer ha'rah (the evil inclination) and Torah as its antidote. Meaning, one is able to counter and neutralize the evil inclination with Torah study. The Ohr HaChaim HaKadosh explains that this is true only if one studies Torah "l'shmah- with the proper intent (which is study of Torah for its own sake)." If one studies Torah with the proper intent then it defuses the evil inclination and acts as an antidote. However, if a person studies Torah with an ulterior motive, then the person's involvement in the mitzvah is lacking integrity. He is studying it for his own sake and not for the Torah itself. Therefore, since he is lacking in Emes, his Torah study is not an effective antidote against the evil inclination just as prayer is not effective if one is lacking in Emes.
We say at the conclusion of the Amidah (silent prayer), " May it be Your will Hashem...that the Holy Temple be rebuilt, speedily in our days, Grant us a share in Your Torah, and may we serve You there with reverence, as in the days of old..." First, we beseech Hashem to rebuild the Bais HaMikdash and then we ask Him to give us a portion of His Torah, which is the means by which one identifies with Emes. Only when we possess truth are we able to serve Hashem with reverence, as in the days of old. We reinstate the commonality with Hashem through Torah, which is truth. At the sea, since the tefillah of the Jewish people was lacking in the quality of Emes, Hashem did not respond immediately to their outcries. Their commitment to tefillah was only as a "craft" of their forefathers.