Everything. God is Almighty, there is nothing he doesn't know. We could ask for all the knowledge in the world like Solomon, and we could get money from it and get rich. All we need is absolute faith in God. But if we were true christians, we wouldn't ask for money anyway so we only need the knowledge about God, Jesus, the Holy Spirit and The Bible.
The Bible is an ancient record of the dealings of God with people of Israel. It can teach us what it is God expects of us. It can teach us that God loves us. it can teach us God's plan for our happiness.
The beattitudes teach us how to be better people of God. It tells us what we can do to please God.
It teaches us that Jesus is the Son of God.
Your parents teach us and the church of any religion teaches us. We can learn from the Gospel passages. Our parent were the first ones to teach us about God an to tell stories.
The Pope teaches us to follow God's will and the commandment of God.He encourages us to be faithful to the word of God.
Moses taught us that we should never give up in God
It teaches that God has no beginning because he as always been there
John chapter 5 verse 6
If you are speaking of the Holy Bible; it exists to to teach us and show us how very much God loves us and what we should do.
to teach us about God and be the boss of the church. but of course god is the #1 head of the church then the pope
To be good and love others before you love yourself
That Sacrament and Church are Gifts to us from God.