It is not an inconsequential matter to be called of God to serve Him. In that service, there are certain things that benefit every believer regardless of position or office held. Yet, the Bible emphasizes an even higher qualification for living for those called to an office within the New Testament church. According to Titus 1:6-9 and 1 Timothy 3:1-2, a man who desires the office of a bishop must, among other things, be blameless. This blamelessness (absence of blame) should extend to his home (1 Timothy 3:2, 4-5), to his dealings with other believers (1 Timothy 3:2-3), and to his dealings with the world (1 Timothy 3:7). The Lord gave similar qualifications for those who would serve in the office as a deacon (1 Timothy 3:10).
Believers should seek to be pure in every facet of life. One might consider limiting this to the places he goes or the things he hears and sees, but purity demands a much greater focus. Believers ought to think on pure things (Philippians 4:8) with pure minds (2 Peter 3:1) and pure consciences (1 Timothy 3:9; 2 Timothy 1:3). In particular, believers should have pure hearts before the Lord (1 Timothy 1:5; 2 Timothy 2:22). A pure heart will lead to a pure conscience and a pure mind. A pure heart changes where a man goes, what he looks upon, and the things he allows to enter into his ears. Every Christian should strive to make sure that all things are pure.