It is in Jehovah’s Character to want to save and bless. He sent Jonah to preach and spared Nineveh. The Bible tells us of Jehovah’s desire to save ALL people.
2 Peter 3:9 – “The Lord is … longsuffering …not wishing that any should perish, but that all should come to repentance. ASV
1 Tim 2:4 – “who [God] desires ALL men to be saved and to come to the knowledge of the truth.” NKJV
John 3:17 – “For God did not send His Son into the world to condemn the world, but that the world through Him might be saved. NKJV
If God wants to bless Mankind, isn’t he powerful enough to do so?
Isa 14:24; Isa 45:22-23; Jonah 3:10