Ephesians 1:4-6
Regarding what are commonly referred to as the "doctrines of grace" consider these two quotes from Charles Spurgeon (1834-1892):
"The only reason why anyone believes in election is because he finds it clearly taught in God's Word. No man, or number of men, ever originated this doctrine."
"There are two great truths from this platform I have proclaimed for many years. The first is that salvation is free to every man that will have it; the second is that God gives salvation to a people whom He has chosen; and these truths are not in conflict with each other in the least degree."