Charles H. Spurgeon on Psalms 119:163

I hate and abhor lying. A double expression for an inexpressible loathing. Falsehood in doctrine, in life, or in speech, falsehood in any form or shape, had become utterly detestable to the Psalmist. This was a remarkable state for an Oriental, for generally lying is the delight of Easterns, and the only wrong they see in it is a want of skill in its exercise so that the liar is found out. David himself had made much progress when he had come to this. He does not, however, alone refer to falsehood in conversation; he evidently intends perversity in faith and teaching. He set down all opposition to the God of truth as lying, and then he turned his whole soul against it in the most intense form of indignation. Godly men should detest false doctrine even as they abhor a lie.

But thy law do I love, because it is all truth. His love was as ardent as his hate. True men love truth, and hate lying. It is well for us to know which way our hates and loves run, and we may do essential service to others by declaring what are their objects. Both love and hate are contagious, and when they are sanctified the wider their influence the better.