Charles Spurgeon Commentary Matthew 13:43

"Then shall the righteous shine forth as the sun in the kingdom of their Father. He that hath ears, let him hear." — Matthew 13:43 (ASV)

Relieved of the cloud created by compulsory association with mere pretenders, the righteous will shine forth. The kingdom always was their Father's, and now they will be seen to be His heirs and, in consequence, inheritors of His glory and joy. Until then they must be, to a great extent, concealed by those who intrude their unworthy presence and keep them in a measure of darkness through the world-mixture. The intruders being removed by the angel executioners, “the righteous” will gain a distinct manifestness of character, which will cause their excellence to be as clearly seen as the sun at noonday. This is welcome news for them, and as they have “ear to hear,” let them hear it with delighted attention.