Exodus 34:26-28 New International Version - UK (NIVUK)
26 ‘Bring the best of the firstfruits of your soil to the house of the Lord your God.
‘Do not cook a young goat in its mother’s milk.’
27 Then the Lord said to Moses, ‘Write down these words, for in accordance with these words I have made a covenant with you and with Israel.’ 28 Moses was there with the Lord forty days and forty nights without eating bread or drinking water. And he wrote on the tablets the words of the covenant – the Ten Commandments.