Theme: Jesus Christ enables kingdom citizens to know God as Father; pray to him and live for him

Old Testament passages which confirm that God's people know him as Father
Know then in your heart that as a man disciplines his son, so the LORD your God disciplines you. - Deuteronomy 8:5

But you are our Father, though Abraham does not know us or Israel acknowledge us; you, LORD, are our Father, our Redeemer from of old is your name. - Isaiah 63:16

Yet you, LORD, are our Father. We are the clay, you are the potter; we are all the work of your hand. - Isaiah 64:8

“A son honors his father, and a slave his master. If I am a father, where is the honor due me? If I am a master, where is the respect due me?” says the LORD Almighty. - Malachi 1:6

Heidelberg Catechism Lord's Day 45
Q116. Why is prayer necessary for Christians?
A. Because prayer is the most important part of the thankfulness which God requires of us...