If the salvation of mankind wasnt so important,Jesus wouldnt have needed to die on the cross. He died that we may be saved.he didnt die that we might continue to live in sin because his grace has been made available to us. Let no devil deceive you by the phrase some use "Once saved,forever saved".when you are saved,you need to do certain things and desist from doing some other things to remain saved. ETERNITY IS SURE FOR ALL,whether believer or unbeliever,IT IS THE LOCATION THAT WOULD DIFFER. Either you'll spend your eternity in Heaven or in Hell is entirely up to you because how you live your life will determine your location,you can choose to be saved or doomed. IF YOU PURSUE ANYTHING,ACHIEVE OR ATTAIN ANYTHING AT THE EXPENSE OF YOUR SALVATION,YOU HAVE CHEATED YOURSELF. IF GOD THOUGHT THE SALVATION OF MANKIND TO BE OF GREAT IMPORTANCE AND YOU ARE THINKING OF YOURS TO BE OF NOT MUCH IMPORTANCE,YOU LOSE THEN. PRIORITISE THE SALVATION OF YOUR SOUL-Matt 6 : 33