What does this saying mean: "Know God, know peace. No God, no peace"?

from the old testament

• We were created in God’s image and placed over creation to rule on His behalf (Genesis 1:26–27). That meant we were created to both have a relationship with Him and to display who He is to the rest of creation.
• In the Old Testament, “shalom,” meaning “peace,” is not the absence of conflict but of being in a right relationship (e.g., Numbers 6:24–26). Before the fall, we were in shalom with God.
• However, we rebelled against Him (Genesis 3:1–7), resulting in His judgment on us (Genesis 3:17–19; cf. Romans 5:12). From that moment on, none of us were righteous (Psalm 14), meaning we are all born as God’s enemies.
• God set the Israelites aside as His people, and He gave them a sacrificial system so He could dwell in their midst. The sacrifices, which were offered continuously (cf. Hebrews 10:1–3), temporarily allowed them to be in a relationship with God. It was not the same relationship of shalom as in the garden, and their sin regularly aggravated God and often led to severe judgments (e.g., Numbers 25:1–9). However, God continued to refrain from destroying them completely so that He could bring His Messiah through them to save the world.
• Isaiah referred to that coming Messiah as the “Prince of Peace” (Isaiah 9:6–7). Speaking prophetically as if Jesus had already come, Isiah 53 reads, “he was pierced for our transgressions; he was crushed for our iniquities; upon him was the chastisement that brought us peace, and with his wounds we are healed” (Isaiah 53:5).

from the new testament

• In the New Testament, when Jesus was born, the angels filled the sky saying, “Glory to God in the highest, and on earth peace among those with whom he is pleased!” (Luke 2:14). They were announcing that the long-promised Messiah who would bring humanity peace with God had just arrived.
• To bring that peace, sin had to be dealt with, as that was the reason for humanity’s war with God. That was why God sent Jesus to bring salvation (John 3:16–17). To do that, though He was eternal God (John 1:1), Jesus added a human nature (Philippians 2:6–7) to become like us, but without sin (Hebrews 4:15). Being fully human and also perfect, He could die in the place of other humans. Unlike the Old Testament sacrifices of animals, which didn’t take away sin (Hebrews 10:4), Jesus’ one death was sufficient to pay sin’s penalty (Romans 3:25). Paul said of believers, “Therefore, since we have been justified by faith, we have peace with God through our Lord Jesus Christ” (Romans 5:1).
• However, notice what the angels said: “peace among those with whom he is pleased.” God’s offer of peace is not a blanket removal of sin. Instead, it is with those whom He is pleased, namely it is who repent of their sin and trust in Jesus (Romans 10:9–10) who are no longer under His wrath (Romans 5:9). That is because “without faith it is impossible to please him” (Hebrews 11:6). Anyone who does not, God’s wrath remains on them (John 3:36). They are still God’s enemies (Romans 5:10).
• Revelation speaks of the end times. After Jesus returns, all of the dead will be raised, and those who are not found in the book of life, those who are not at peace with God, will be cast into the lake of fire to be punished for eternity (Revelation 20:11–15).
• It is important to make peace with God now, while there is still time (2 Corinthians 6:2)!

implications for today

Since humanity’s first sin, man has been at war. Not just at war with God but at war with itself. Why is this? The reason the world cries for peace yet fights each other is that true peace requires a change of heart. It doesn’t come by forcing everyone to do the same thing. It doesn’t come from letting everyone do whatever they want. It doesn’t come from totalitarianism. It doesn’t come through democracy. It doesn’t come through protest. It doesn’t come through law. It doesn’t come because men and women are internally sinful and unable to produce true peace. Part of being sinful is the desire to rule in place of God (Genesis 3:5). When two people come together, both wanting to control the relationship, a fight inevitably ensues.

How then is peace possible? Jesus came for this purpose. However, He first came because we have a greater need than peace between humans: we need peace between humanity and God. Jesus came to die to pay God’s wrath in our place (Colossians 1:20). For those who trust in Jesus, His death has appeased God’s wrath (Romans 3:25) and brought us into His family (Romans 8:15).

Why is there still fighting? Jesus’ first mission was not to bring human peace (Matthew 10:34) but to make peace with God possible. That allows believers to live life without the fear of eternal punishment (1 John 4:18). However, Jesus also promised to end all fighting. He will do that by destroying sin and sinners. When He returns, believers will be made perfect (1 John 3:2) while unbelievers will be cast into the lake of fire, eternally judged (Revelation 20:11–15). No more sin on earth will mean no more fighting—an eternal peace.

When Jesus came, peace with God was possible. It also began the countdown to His return, which will bring the world into subjection (Philippians 2:9–11). There will be a time of eternal peace but only for those who first made peace with God. Have you?