Buddhas cannot wash away our negativities with water nor remove our sufferings by touching us with their hands, nor can they transfer their wisdom to us in the manner of giving us a material object.
All they can do is show us the paths and practices. Whether we achieve spiritual liberation or not depends entirely upon whether we apply ourselves to the practices.
In ‘an ornament of the clear realisations’, it states:
Although the king sends forth rain, infertile seed do not grow or sprout
Similarly, although the Buddhas manifest, those without merit experience no benefit
And ‘a treasury of abhidharma’ states:
The dharma taught by Buddha, has two aspects: scriptural and insight
The first of these is upheld, by means of study and teaching
The second is upheld by practice and realisation