Hebrews 1:1-2 Christian Standard Bible (CSB)
The Nature of the Son
1 Long ago God spoke to the fathers by the prophets at different times and in different ways. 2 In these last days, he has spoken to us by his Son. God has appointed him heir of all things and made the universe[a] through him.
Hebrews 4:12 Christian Standard Bible (CSB)
12 For the word of God is living and effective and sharper than any double-edged sword, penetrating as far as the separation of soul and spirit, joints and marrow. It is able to judge the thoughts and intentions of the heart.