I would say to know the bible is to have the teachings within your Spirit, which drives the effectiveness of any gifts the Lord may give you. (1 Corinthians 12:4–11)
Understanding the bible is the first step, this is gleaned from your own study or through informal means of the Holy Spirits edification and formal means as in Bible schools, Churches or ministries. This is a precursor to the word getting inside your heart which is the knowing……
They are more cause and effect than conveying the same sentiment.