who knoweth: Ecc 2:3, Ecc 12:13, Psa 4:6, Psa 16:5, Psa 17:15, Psa 47:4, Lam 3:24-27, Mic 6:8 the days of his vain life: Heb. the number of the days of the life of his vanity, Ecc 8:13, Ecc 9:6, 1Ch 29:15, Job 8:9, Job 14:2, Psa 39:5, Psa 39:6, Psa 89:47, Psa 90:10-12, Psa 102:11, Psa 109:23, Psa 144:4, Jam 4:14 for who can: Ecc 3:22, Ecc 8:7, Job 14:21 Reciprocal: Job 7:16 - my days Job 17:7 - shadow Ecc 1:3 - under Ecc 1:4 - One generation Ecc 7:15 - have I Ecc 9:9 - all the days of the life Ecc 10:14 - a man Ecc 12:8 - General Luk 8:42 - and she 1Co 7:29 - the time