[sort of related; you may be leaving, but God isn't]
1 Kings 8:57-58
"May the LORD our God be with us, as He was with our fathers; may He not leave us or forsake us, 58 that He may incline our hearts to Himself, to walk in all His ways and to keep His commandments and His statutes and His ordinances, which He commanded our fathers.
John 14:27 [this is a goody!]
"Peace I leave with you; My peace I give to you; not as the world gives do I give to you. Do not let your heart be troubled, nor let it be fearful.
Acts 18:18-21
18 Paul, having remained many days longer, took leave of the brethren and put out to sea for Syria, and with him were Priscilla and Aquila. In Cenchrea he had his hair cut, for he was keeping a vow. 19 They came to Ephesus, and he left them there. Now he himself entered the synagogue and reasoned with the Jews. 20 When they asked him to stay for a longer time, he did not consent, 21 but taking leave of them and saying, "I will return to you again if God wills," he set sail from Ephesus.
Ecclesiastes 3:1-8
1 To everything there is a season, A time for every purpose under heaven: 2 A time to be born, And a time to die; A time to plant, And a time to pluck what is planted; 3 A time to kill, And a time to heal; A time to break down, And a time to build up; 4 A time to weep, And a time to laugh; A time to mourn, And a time to dance; 5 A time to cast away stones, And a time to gather stones; A time to embrace, And a time to refrain from embracing; 6 A time to gain, And a time to lose; A time to keep, And a time to throw away; 7 A time to tear, And a time to sew; A time to keep silence, And a time to speak; 8 A time to love, And a time to hate; A time of war, And a time of peace.