To cover ...whether it is to guard or protect; conceal or hide from sight or knowledge ---whether with good intentions or not; or to make a provision for ---with a worthy replacement, a worthy investment, or totally covering expenses ...all involve some consideration in covering.

Adam & Eve tried to cover their guilt ...but, God exposed them ---then covered them by His own provision.  

One of Noah's sons sought to expose his dad, but two made allowance for any perceived shortcomings.  

The good Samaritan provided compassion without judgment ...and also covered the cost of recovery.  

And Jesus covered the full expense of the debt of all of our sins ...with his death on the cross.

As Jesus died on the cross, He said, "It is finished."  He had completed His purpose of coming to make provision for our sins.  But, in another respect, it had just begun ...shortly after His resurrection, He gave His disciples a commission.

They received no fee or payment for performing a service ...it was not that kind of commission.  Jesus gave them direct authorization granting them the power and entrusting them with the responsibility to go out wholly and holy in His behalf to spread the message of salvation, covering the whole earth.

Obviously, they didn't even know half the earth existed nor the means to discover those other areas.  They only covered what they could, and were to pass the passion on to us ...so, we would enthusiastically take up the commission.