What does Luke 12:34 mean?

This verse is the theme and subtext of the entire section starting at the beginning of chapter 12, running through verse 9 of chapter 13.

The Pharisees are hypocritical because they speak as if they serve God, but their treasure is the adoration of men. Those who treasure God will speak and act in truth (Luke 12:1–3).

Those who fear death will lie when brought before powerful accusers, because their treasure is their earthly lives. Those whose treasure is in Jesus will trust God's plan and remain faithful in the face of death, knowing God has authority over the fate of their eternal souls (Luke 12:4–12).

Accumulating riches on earth is foolish; it can break family relationships and reveals one's heart is toward an earthly kingdom, not a relationship with God (Luke 12:13–21).

People who compromise faith or integrity to protect necessities of life show their treasure is continued existence in this world. They're more concerned with "not dying" than with the important work of seeking God's kingdom and inheriting eternal rewards (Luke 12:22–32).

God puts leaders in place to follow His instructions and care for His people as they await Jesus' return. Leaders who take advantage of God's children show their preferred treasure is earthly power and influence. In contrast, good leadership will be rewarded (Luke 12:35–48).

Followers of Christ should so treasure truth and God's kingdom that their hearts will be torn from family members who reject Christ and ignore the signs of coming judgment (Luke 12:54–56).

Whether through pride, greed, or laziness, some refuse to work with their accuser to settle an argument and rely on secular courts to decide the matter. They show their hearts are not aligned with God's call for humility and responsibility (Luke 12:57–59).

Finally, people should realize the urgency of seeking reconciliation with God. If they genuinely want forgiveness and a restored relationship, they will act quickly. If not, they may be separated from Him forever (Luke 13:1–9).