By myself I have sworn; from my mouth has gone out in righteousness a word that shall not return: ‘To me every knee shall bow, every tongue shall swear allegiance.’ – Isaiah 45:23
The Lord would have us pledge allegiance, that is, swear an oath, to none other than Himself as the One True King. That excludes the American flag, government or military machine. We have but one Sovereign, Jesus Christ.
In many churches on this fourth of July weekend, two gods will be worshiped; the God of the Bible, and the god who is the state. There is a time and place appropriate for patriotism and patriotic songs. Sunday services is not one of them. Worship services in the local church is for the worship of God alone. To share that time with patriotic (so-called) hymns to our government, country, flag or soldiers is nothing short of patriotic idolatry.
May the saints within the church be delivered from such sin.