There is a second reason sinners need to change their ways and thoughts, with the Lord"s help, and that is because the Word of the Lord is absolutely dependable. All that God has said is reliable, including His promise of pardon and compassion ( Isaiah 55:7; cf. Isaiah 53:10). God"s Word is like the rain and snow, the gifts of God from heaven to earth (cf. Isaiah 55:9). Rain and snow are water in its two forms as it normally comes from heaven to Palestine. Isaiah"s use of both rain and snow may indicate the totality of His blessing; every time God sends water from heaven, in whatever form, it brings blessing because it nourishes the earth. Both rain and snow achieve their purpose of bringing life, nourishment, and blessing to humanity (cf. Jeremiah 29:11; Mark 4:1-20; Hebrews 6:7-8). Therefore, since God has promised compassion and forgiveness for those who seek Him, people can count on the fact that if they seek Him, this will be His response. [source][source][source]
"As the rain furnishes both seed and bread, so the word of God plants the seed of repentance in the heart and feeds the returning sinner with the blessed consequences repentance produces." [1][source]