God will stop striving with You

Sin and wickedness increased in the ancient world. They had the gospel and God's Spirit did strive with men and women calling them to repent and be converted. But they hardened their hearts and refused to listen, so God determined that since they would not turn to Him He would deal with them in wrath. He brought His flood upon them and destroyed them. God strives with you calling you to turn and be saved. If you keep refusing then one day the striving will stop and God will leave you to perish. Don't keep refusing Christ.