Paul was Weeping while the Holy Spirit was inspiring him to write this scripture about “enemies of the cross of Christ.”
*[[Phi 3:17-21]] KJV* Brethren, be followers together of me, and mark them which walk so as ye have us for an ensample. (For many walk, of whom I have told you often, and now tell you even weeping, that they are the enemies of the cross of Christ: Whose end is destruction, whose God is their belly, and whose glory is in their shame, who mind earthly things.) For our conversation is in heaven; from whence also we look for the Saviour, the Lord Jesus Christ: Who shall change our vile body, that it may be fashioned like unto his glorious body, according to the working whereby he is able even to subdue all things unto himself.
The enemies of the cross of Christ were false apostles that followed Paul and imitated his ministry but not his message and lifestyle and his sacrifice. They were more earthly minded, focused on the temporary, and their real god was their belly.
Paul wanted disciples of Christ to live lives focused in on the Kingdom of God, not man. God wants our hope stored up in Jesus changing our bodies into a glorious heavenly and supernatural body like His, so we can partner with Him in His literal kingdom.
Temporary guys get glory in this age alone. They glory and boast in things that they dont even know are shameful. And they call themselves Christians!