Fall upon knees

1. 2 Kgs. 1: 13
     13 ¶ And he sent again a captain of the third fifty with his fifty. And the third captain of fifty went up, and came and fell on his knees before Elijah, and besought him, and said unto him, O man of God, I pray thee, let my life, and the life of these fifty thy servants, be precious in thy sight.
2. Ezra 9: 5
     5 ¶ And at the evening sacrifice I arose up from my heaviness; and having rent my garment and my mantle, I fell upon my knees, and spread out my hands unto the Lord my God,
3. Alma 19: 14
     14 Now Ammon seeing the Spirit of the Lord poured out according to his prayers upon the Lamanites, his brethren, who had been the cause of so much mourning among the Nephites, or among all the people of God because of their iniquities and their traditions, he fell upon his knees, and began to pour out his soul in prayer and thanksgiving to God for what he had done for his brethren; and he was also overpowered with joy; and thus they all three had sunk to the earth.