No one can come to me unless the Father who sent me draws him, and I will raise him up on the last day.

The first recorded mention of this truth in the Bible...

Genesis 3:8-10.  Then the man and his wife heard the voice of the LORD God walking in the garden in the breeze of the day, and they hid themselves from the presence of the LORD God among the trees of the garden.

9. But the LORD God called out to the man, “Where are you?”

10. “I heard Your voice in the garden,” he replied, “and I was afraid because I was naked; so I hid myself.”

Psalm 119:105

       

How does this relate to the two forms of God's guidance?

Hebrews 11

6. And without faith it is impossible to please him, for whoever would draw near to God must believe that he exists and that he rewards those who seek him.

Romans 10

9 If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved. 10 For it is with your heart that you believe and are justified, and it is with your mouth that you profess your faith and are saved.

Psalm 19

7. The law of the Lord is perfect,

    reviving the soul;

the decrees of the Lord are sure,

    making wise the simple;

8. the precepts of the Lord are right,

    rejoicing the heart;

the commandment of the Lord is clear,

    enlightening the eyes;

9. the fear of the Lord is pure,

    enduring forever;

the ordinances of the Lord are true

    and righteous altogether.