Discernment

How do we grow in discernment?
I prayed for this for years knowing I needed it. Then God showed me this scripture -

'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' (Heb 4:12)

I realized the more I hid God's word in my heart through reading and studying the Bible I would be able to tell what was of me (my soul: including my will, emotions and thoughts) and my spirit where God resides and His Holy Spirit speaks to me.

In other words I would be able to tell the difference between my thoughts, Satan's lies and what God was telling me. What a relief!