What are the keys to God's blessing?

I believe that the key to God’s blessings starts with obedience to His Word. We see this theme borne out through the Scriptures time after time where the Lord promises to bless those who will obey what He says. 

Psalms 1:1-3 [1] Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful. [2] But his delight is in the law of the LORD; and in his law doth he meditate day and night. [3] And he shall be like a tree planted by the rivers of water, that bringeth forth his fruit in his season; his leaf also shall not wither; and whatsoever he doeth shall prosper.
See All... Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful. But his delight is in the law of the LORD; and in his law doth he meditate day and night. And he shall be like a tree planted by the rivers of water, that bringeth forth his fruit in his season; his leaf also shall not wither; and whatsoever he doeth shall prosper.

Proverbs 3:1-4 [1] My son, forget not my law; but let thine heart keep my commandments: [2] For length of days, and long life, and peace, shall they add to thee. [3] Let not mercy and truth forsake thee: bind them about thy neck; write them upon the table of thine heart: [4] So shalt thou find favour and good understanding in the sight of God and man.
See All... My son, forget not my law; but let thine heart keep my commandments: For length of days, and long life, and peace, shall they add to thee. Let not mercy and truth forsake thee: bind them about thy neck; write them upon the table of thine heart: So shalt thou find favour and good understanding in the sight of God and man.

Jeremiah 7:23But this thing commanded I them, saying, Obey my voice, and I will be your God, and ye shall be my people: and walk ye in all the ways that I have commanded you, that it may be well unto you.
See All... But this thing commanded I them, saying, Obey my voice, and I will be your God, and ye shall be my people: and walk ye in all the ways that I have commanded you, that it may be well unto you. 

Joshua 1:8This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success.
See All... This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success. 

James 1:22-25 [22] But be ye doers of the word, and not hearers only, deceiving your own selves. [23] For if any be a hearer of the word, and not a doer, he is like unto a man beholding his natural face in a glass: [24] For he beholdeth himself, and goeth his way, and straightway forgetteth what manner of man he was. [25] But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed.
See All... But be ye doers of the word, and not hearers only, deceiving your own selves. For if any be a hearer of the word, and not a doer, he is like unto a man beholding his natural face in a glass: For he beholdeth himself, and goeth his way, and straightway forgetteth what manner of man he was. But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed.