Why did some states demand that the u. s. constitution include a bill of rights?

Almost immediately after beginning to meet in 1789, the first Congress, led by James Madison, began to consider amendments to the Constitution proposed by the state ratifying conventions. George Washington and Madison had personally pledged to consider amendments because they realized that some amendments would be necessary to reduce pressure for a second constitutional convention that might drastically alter and weaken the new federal government. Fastening on Anti-Federalist criticisms that the Constitution lacked a clear articulation of guaranteed rights, Madison proposed amendments that emphasized the rights of individuals rather than the rights of states， an ingenious move that led to cries that these amendments—now known as the “Bill of Rights”—were a mere diversion.

he sent troops to protect the students as they entered the school.

the covenant that god made with abraham was a unilateral (one-sided) promise from god to abraham.   apart from anything abraham did, god was promising that he was going to bring about a great nation from abraham's offspring, and that the messiah (meaning "the anointed one") would come from abraham's descendants, as one through whom the whole world would receive favor from god.   as god promised abraham, "through your offspring all nations on earth will be blessed" (genesis 22: 18).

the "new covenant" was announced by jesus of nazareth, who had asserted that he was the "son of david" (and descendant of abraham) that fulfilled those promises to abraham.   when jesus introduced the sacred meal that we now refer to as the lord's supper, as told his disciples in reference to the wine they drank, "this cup is the new covenant in my blood, which is poured out for you" (luke 22: 20).   this "new covenant" through jesus was also a unilateral (one-sided) covenant.   he gave himself in sacrifice for all people, without conditions attached.   as his friend and apostle john later wrote, "he is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world" (1 john 2: 2).

so the covenant with abraham and the "new covenant" ushered in by jesus are, in essence, connected as one covenant -- because jesus was saying he was the one promised to abraham that fulfilled that covenant and brought blessing to the world.