Aaahhh! I think we draw closer to an agreement. "Used differently" is great. So, in my example, the usage in my first verse means that God loves His creation - the "adornment" of stars and planets and their governing laws. Since Adam's rebellion and Abel's murder, it lies under curse. Shedding of innocent blood, sexual sins and idolatry pollute the earth. God wants to redeem it from the curse. This is realized in Jesus Christ whose blood "speaketh better things that that of Abel." Abel's blood cried from the ground for vengeance, and a just God must answer. Jesus' blood IS THAT VENGEANCE and so God can judicially restore the kosmos.
In the second example from 1st John the "world" is still the "adornment" but it speaks of how things are arranged under Gentile government and Satan's instigation. It is an "adornment" of human government, like when He stood before Pilate and said that His Kingdom was not of this "world". It was the "arrangement" of Gentile Occult Theocratic government that did not constitute His "arrangement" of things. And the system of Satan is, (i) the lust of the eyes (advertising & marketing), (ii) the lust of the flesh (sexual sins and socialism where you get paid to do nothing), and (iii) the pride of life - being famous is better than wealth. This is the "arrangement of things" now.