We have precedent for such a belief. A striking example is that of Manasseh (II Chron. 33:18). A greater sinner than he it would be difficult to imagine. We can understand prayers of sinners for temporal blessings being unheard; "their sacrifice" and perhaps their prayers, too, "are an abomination" (Prov. 15:8); but when the sinner cries to God for pardon and for; help to quit his sins, he is surely heard. God does not mock the wicked man when he bids him "seek the Lord." Let the wicked forsake his way and return, for he will abundantly pardon (Isa. 55:6,7). God heard the prayers of the people of Nineveh (Jonah 3:7-10). The way of approach to God is by repentance and that God gives (Acts 5:31). When the wicked man prays for that, he gets it; then God forgives him and he is in a position to ask for and receive all other blessings.