What does 1 Samuel 26:19 mean?

'If the Lord has stirred you up against me, let’s make an offering to Him. But if it’s people who’ve turned you against me, may they be cursed, because they’ve driven me away from my home and told me I don’t belong among God’s people.' 1 Samuel 26:19 - Modern Text Bible

(David suggests that if God is behind Saul’s anger, he’s willing to make peace. But if it’s just gossip and lies, those people are to blame for forcing him out.)