Dhammapada verses 118 and 119

118. Should a person do good, let him do it again and again. Let him find pleasure therein, for blissful is the accumulation of good.

119. It may be well with the evil-doer as long as the evil ripens not. But when it does ripen, then the evil-doer sees (the painful results of) his evil deeds.

– Dhammapada IX – Papavagga: Evil 118 and 119