Why study the bible?

Can you reconcile these scriptures? Ec 12:12 And further, by these, my son, be admonished: of making many books [there is] no end; and much study [is] a weariness of the flesh.

Ps 119:16 I will delight myself in thy statutes: I will not forget thy word.

Jer 6:10 To whom shall I speak, and give warning, that they may hear? behold, their ear is uncircumcised, and they cannot hearken: behold, the word of the LORD is unto them a reproach; they have no delight in it.