Proverbs 4:20-27 gives us some very sound advice if we want to move ahead with God:
20 My son [that includes daughters], give attention to my words; incline your ear to my sayings.
21 Do not let them depart from your eyes; keep them in the midst of your heart;
22 For they are life to those who find them, and health to all their flesh.
23 Keep your heart with all diligence [that is careful effort, perseverance], for out of it spring the issues of life.
24 Put away from you a deceitful mouth, and put perverse lips far from you.
25 Let your eyes look straight ahead and your eyelids look right before you.
26 Ponder the path of your feet, and let all your ways be established.
27 Do not turn to the right or the left; remove your foot from evil.According to these verses, how we deal with the issues or challenges that face us in life come from our hearts.
In Matthew 15:18-19, Jesus gives us more information about the issues that come from the heart:
18 But those things which proceed out of the mouth come from the heart, and they defile a man.
19 For out of the heart proceed evil thoughts, murders, adulteries, fornication, thefts, false witness, blasphemies.