Don’t live a double-standard, hypocritical life – at some stage the truth will come out resulting in guilty humiliation when found out (Num 32:23). So you will not feel ashamed by what you think of yourself continually walk honestly and with integrity (Mic 6:8).
Jesus said, if anyone is ashamed of Him and His words, He would be ashamed of them when He comes in power and glory (Lk 9:26). The Bible states, “None who trusts in Him will be put to shame...If you suffer as a Christian do not be ashamed, but praise God you are associated with that name” (Rom 9:33, 10:11; 1 Pet 4:16).
As Christians, we are on the winning side
proactive in wanting others also to find the liberty we are experiencing in Him. Even in suffering Paul was not ashamed, but was convinced God was still in control (2 Tim 1:12). We are challenged to diligently study, share and live by God’s Word so we will not be ashamed when we give account of our lives to Him (Rom 14:12; 2 Tim 2:15).
To live unashamed of the gospel means we apply it's message to our lives and this enables us to show we believe it so everyone in our sphere of influence can see we have "been with Jesus" (Act 4:13).
See also: disappointments, embarrassed, failure, fear, guilt, humiliation, judgement/divine.