The meaning of “Χριστός”

“Saying, What think ye of Christ? whose son is he? They say unto him, The Son of David.”

“For I could wish that myself were accursed from Christ for my brethren, my kinsmen according to the flesh:”

“Let this mind be in you, which was also in Christ Jesus:”

“Remember that Jesus Christ of the seed of David was raised from the dead according to my gospel:”

“Having a good conscience; that, whereas they speak evil of you, as of evildoers, they may be ashamed that falsely accuse your good conversation in Christ.”