Proverbs
My son, do not despise the chastening of the LORD, Nor detest His correction; For whom the LORD loves He corrects, Just as a father the son in whom he delights.

Proverbs 3:11-12

The Word
For the word of God is living and powerful, and sharper than any two-edged sword, piercing even to the division of soul and spirit, and of joints and marrow, and is a discerner of the thoughts and intents of the heart.

Hebrews 4:12

Soli Deo gloria
"glory to God alone"

1 Peter 4:11

Cambridge Declaration

Doctrine
"By entertaining of strange persons, men sometimes entertain angels unawares; But by entertaining of strange doctrines, many have entertained devils unaware."

John Flavel...

Psalms
Blessed is the man Who walks not in the counsel of the ungodly, Nor stands in the path of sinners, Nor sits in the seat of the scornful; But his delight is in the law of the LORD, And in His law he meditates day and night.

Psalms 1:1-2

Beatitudes
“ Blessed are the poor in spirit, For theirs is the kingdom of heaven."

Matthew 5:3