'Guard' in the Bible

I solemnly charge you in the presence of God and of Christ Jesus and of His chosen angels that you guard and keep these rules without bias, doing nothing out of favoritism.

O Timothy, guard and keep safe the deposit [of godly truth] entrusted to you, turn away from worldly and godless chatter [with its profane, empty words], and the contradictions of what is falsely called “knowledge”—