2 Timothy 3:16,
"All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:"
Where do we get our authority to say, teach, and preach what we do? According to the Bible, God's Word, it is given by God Himself, substantiated in us via His Word. As I grow older I find the truth that there is nothing in this life that is not answered within the divine pages of scripture. The more I learn the more I realize I know very little, next to nothing. As I trust in His Word, as I am drawn and apply myself to His Word, the revelation of His Word becomes evermore powerful in my life. But first we have to believe it. If you make the choice to believe (and it is a choice), then you will see amazing things. You will get an understanding of proper doctrine and Yeshua's application of His boundaries in our lives. You will have the wisdom to understand that His principles are much smarter than what we think. You will learn the foolishness of pride and the lower, but better way of the disciple. You will be taught the lessons of life by the Son of God who communicates with you through the Ruach HaKodesh, the Spirit of the Living God. You will begin to learn to understand the righteousness of our Messiah who lives in us and is worthy to be praised. The scripture, the Bible, is greater than mankind realizes. It is set ablaze within Yeshua's people when they believe and apply it. The Word of God and the Spirit of God are in agreement. When we have His truth in our hearts, we can do anything through our blessed Adonai who strengthens us.
Philippians 4:13, "I can do all things through Messiah which strengtheneth me."