Not True.
Prayer is not a whimper's cry for help.
Prayer is an intimate relationship with God
Leviticus 26:3-6 tells us:
"If you follow my decrees and are careful to obey my commands, I will send you rain in its season, and the ground will yield its crops and the trees of the field their fruit. Your threshing will continue until grape harvest and the grape harvest will continue until planting, and you will eat all the food you want and live in safety of your land. I will grant peace in the land, and you will lie down and no one will make you afraid. I wil remove savage beasts from the land, and the sword will not pass through your country."