OS LkSin6:33 :ܘܐܢ ܥܒܕܝܢ ܐܢܬܘܢ ܕܛܒ ܠܘܬ ܡܢ ܕܥܒܕ ܨܝܕܝܟܘܢ ܕܛܒ‏ : if you do good to the one who does what is good with you
See the entire entry for ṣēḏ/ṣēṯ prep. with, at, toward