When Moses was in fellowship with God and in prayer, he experienced God's holy presence—the glory of God. During these times Moses was growing to know God better and he was being changed by encountering God's presence.

Moses learned to highly value the presence of God. He also learned the great need to continue to know God better. 

Moses appeals to God's Word when he intercedes in prayer on behalf of the nation of Israel. One man praying, spares an entire nation.

When Moses is confronted with a crisis, he doesn't try to solve the problem with his own reasoning. Instead, he cries out to the Lord in prayer and the Lord gives him the proper guidance. Often that guidance can result in something far more significant than we imagined. 

The Song of Moses reminds us that praise should always be a vital part of our prayer lives. In this song, there is an emphasis on who God is, what He has done for the people of Israel, His steadfast love for His people, and trust in God's future reign.

God used the prayers of Moses to stop the plagues. Moses was an intercessor. Intercessory prayer can be understood as someone who is in a right relationship with God praying before God on behalf of someone else who is not necessarily in a right relationship with God.

Jacob's prayer in Genesis 32 is a good model for how to pray confidently and specifically.  Jacob approaches God on the basis of who God is. He also appeals to God on the basis of what God has already said. He prays with humility. 

It is not only well know people of the Bible whose prayers were recorded.  The prayer of Abraham's servant is recorded in Genesis. Two of the things we learn from the prayer are the value of praying specifically and not approaching God on the basis of our own wisdom, worthiness, or righteousness, but approaching God on the basis of His great steadfast love.

Abraham was far from perfect. However, God used Abraham's prayers for King Abimelech to heal him and his household. God chose to use the prayer of someone who was walking with Him to work in the life of someone who was not walking with Him.

Because of Abraham's relationship with God, Lot was spared when God destroyed the cities of Sodom and Gomorrah. Abraham stood before God to pray for others. God also gives us, as believers in Jesus, the privilege of interceding in prayer on behalf o others.