“Blameless” means “faultless, without reproach.” It is used especially of Job and his blameless character (see Job 1:1, 8, NKJV; Job 2:3, NKJV; see also Job 11:4; Job 33:9). The Greek word translated “harmless” literally means “unmixed, pure.” Jesus, in view of the vicious attacks that His witnesses are likely to face, encourages us to be “harmless as doves” (Matt. 10:16). Paul similarly urges us to be “simple concerning evil” (Rom. 16:19, NKJV).

Our modern media channels are not known for pure, uplifting, and inspiring content. In times like these, David’s practice is a great rule for us today: “I will set no wicked thing before mine eyes” (Ps. 101:3).

The goal is to “shine as lights in the world” (Phil. 2:15). The only way to do that is to reject conformity to this world (Rom. 12:2) by “holding fast the word of life” (Phil. 2:16, NKJV). Our choices determine whether we have lived with “the day of Christ” in view or have “run in vain” (Phil. 2:16, NKJV; compare 1 Cor. 9:24–27)