8 Let us therefore draw near unto Him, and say, “Truth, Lord; for even the dogs eat of the crumbs which fall from their masters' table.” Let us draw near “in season, out of season:” or rather, one can never draw near out of season, for it is unseasonable not to be continually approaching. For of Him who desires to give it is always seasonable to ask: yea, as breathing is never out of season, so neither is praying unseasonable, but rather not praying. Since as we need this breath, so do we also the help that comes from Him; and if we be willing, we shall easily draw Him to us. And the prophet, to manifest this, and to point out the constant readiness of His beneficence, said, “We shall find Him prepared as the morning.” For as often as we may draw near, we shall see Him awaiting our movements. And if we fail to draw from out of His ever-springing goodness, the blame is all ours. This, for example, was His complaint against certain Jews, when He said, “My mercy is as a morning cloud, and as the early dew it goes away.” And His meaning is like this; “I indeed have supplied all my part, but you, as a hot sun coming over scatters both the cloud and the dew, and makes them vanish, so have ye by your great wickedness restrained the unspeakable Beneficence.”
Which also itself again is an instance of providential care: that even when He sees us unworthy to receive good, He withholds His benefits, lest He render us careless. But if we change a little, even but so much as to know that we have sinned, He gushes out beyond the fountains, He is poured forth beyond the ocean; and the more you receive, so much the more does He rejoice; and in this way is stirred up again to give us more. For indeed He accounts it as His own wealth, that we should be saved, and that He should give largely to them that ask. And this, it may seem, Paul was declaring when He said, that He is “rich unto all and over all that call upon Him.” Because when we pray not, then He is angry; when we pray not, then does He turn away from us. For this cause “He became poor, that He might make us rich;” for this cause He underwent all those sufferings, that He might incite us to ask.
Let us not therefore despair, but having so many motives and good hopes, though we sin every day, let us approach Him, entreating, beseeching, asking the forgiveness of our sins. For thus we shall be more backward to sin for the time to come; thus shall we drive away the devil, and shall call forth the lovingkindness of God, and attain unto the good things to come, by the grace and love towards man of our Lord Jesus Christ, to whom be glory and might forever and ever. Amen.
Source: Homilies on the Gospel of St. Matthew (New Advent)