Buddhists and Taoists have religious practices wherein they separate themselves from worldly affairs and practice asceticism, can that achieve salvation?

Bible Reference:

“Why should the heathen say, Where is now their God? But our God is in the heavens: he has done whatever he has pleased. Their idols are silver and gold, the work of men’s hands. They have mouths, but they speak not: eyes have they, but they see not: They have ears, but they hear not: noses have they, but they smell not: They have hands, but they handle not: feet have they, but they walk not: neither speak they through their throat.