If you follow my decrees and are careful to obey my commands.

Leviticus 26:3

If obedience is the bridge to blessings, then disobedience is the road to ruin. 

• Conjunction: an uninflected linguistic form that joins together sentences, clauses, phrases, or words
• If: condition, stipulation, on condition that 
• Fulcrum: one that supplies capability for action

Blessing. Ruin. The fulcrum of both is the tiny but powerful word if.

Oswald Chambers has the answer: Obedience is the key to spiritual confusion: Obey. Obey. Obey.

My favorite New Testament “if.”

If you [really] love Me, you will keep (obey) My commands.
John 14:15 (AMPC)

Every "yes":

• Brings joy.
  Joyful are people of integrity, who follow the instructions of the Lord. Joyful are those who obey his laws and search for him with all their hearts.
  Psalm 119:1-2 
• Gives strength.
  Therefore, be careful to obey every command I am giving you today, so you may have strength to go in and take over the land you are about to enter.
  Deuteronomy 11:8
• Love is perfected.
  But whoever keeps His word, in him the love of God has truly been perfected. By this we know that we are in Him: the one who says he abides in Him ought himself to walk in the same manner as He walked.
  1 John 2:5-6 (NASB)
• God makes His home in our heart.
  Jesus answered him, “If anyone loves me, he will keep my word, and my Father will love him, and we will come to him and make our home with him.
  John 14:23 (ESV)
• Gives life.
  If you obey my decrees and my regulations, you will find life through them. I am the LORD.
  Leviticus 18:5
• Yes - brings the manifestation of the Holy Spirit.
  Whoever has my commandments and keeps them, it is he who loves me. And he who loves me will be loved by my Father, and I will love him and manifest myself to him.”
  John 14:21 (ESV)

These chapters – the law – are full of “always” and “musts.” God expects us to submit to His leadership always. Following His ways is a must in order to enjoy complete joy and freedom, to experience the life He died to give. 

Walk the bridge to blessing.