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Deuteronomy 28:13:
"And the LORD shall make thee the head, and not the tail; and thou shalt be above only, and thou shalt not be beneath; if that thou hearken unto the commandments of the LORD thy God, which I command thee this day, to observe and to do them".
When referring to 'The Head', it simply implies the first in everything, be it your career, academics, business and even in the environment you find yourself.
But, as a Christian you must acknowledge and adhere to the voice of the Lord your God and doing what is right in His ways. With following this path, all the blessings he promises His children will be fulfilled in your life, you'll be a living testimony to others of God's work. You would never lack anything, be the cares for those who obey and love him.
Brethren, I beseech thee today, no matter the frustration through the challenges of this life, never let it make you turn your back on God.
Hacken to Him, try to live a just life, the Lord will make you head amongst all, and all will be well with thee.