Quran 8:30 Makr – Makara
Mohamad Mostafa Nassar
And [remember, O Muhammad], when those who disbelieved plotted against you to restrain you or kill you or evict you [from Makkah]. But they plan, and Allah plans. And Allah is the best of planners. – Qur’an 8:30
The above verse is cited by Christian missionaries that Allah’s planning against the evil people is somehow wrong and deceptive.
The historical background for the above verse is that it was revealed because the disbelievers planned to murder Prophet Muhammad (p). Hence, Allah stopped their evil plan. How is this in any way wrong, deceptive, or evil? Also, click on the following link for more information on the word makr, and makara.
Commentary on Quran 8:30
Ma’arifulul-Qur’an – Maulana Muhammad Shaffi
The second verse (30) points out to a particular reward and favour of Allah Ta’ala which has been conferred on the Holy Prophet, the noble companions and, in fact, on the whole world. This came to be before the Hijrah when the Holy Prophet was encircled by the disbelievers and they were planning to detain or kill him. Then, Allah Ta’ala made their unholy intentions lick dust and made it possible for the Holy Prophet to reach the city of Madinah in perfect safety. 
Scholar Maulana Muhammad Ali
30a. The reference is to the final plans of the Quraish when, the companions having emigrated to Madinah, the Prophet was left alone in Makkah. Various plans were suggested at a great meeting of the Quraish chiefs in their town hall; the plan ultimately adopted was that the Prophet should be slain, a number of youths belonging to different tribes thrusting their swords in his body at one and the same time, so that one man or tribe should not have the charge laid against him or it.
It was with this object that the Prophet’s house was surrounded, but he got away unnoticed (IH). The Divine plan was that the disbelievers should see the downfall of their power at the hands of the Prophet. 
The Holy Qur’an – Arabic Text With English Translation & Short Commentary – Malik Ghulam Farid:
1115. Reference in the verse is to the secret conference which was held in Dar al-Nadwah (house of Consultation) in Mecca. Seeing that all their efforts to arrest the progress of the new Faith failed and that most Muslims who could afford to leave Mecca had emigrated to Medina and were out f harm’s way, the Elders of the town assembled in Dar al-Nadwah to devise plans to make a last attempt to finish Islam.
After deep deliberation they hit upon a plan that a number of young men from various Quraish tribes should, in a joint attack, swoop down upon the Holy prophet and kill him. The Holy prophet left the house unnoticed at dead of night, when the watchers were overpowered by sleep, and took refuge in a Cave Thaur along with Abu Bakr, his ever faithful Companion, and finally reached Medina in safety. 
Also, read the following articles where God of the Bible indulges in or encourages others to deceive, lie:
 Ma’arifulul-Qur’an By Maulana Muhammad Shaffi volume 4, page 201
 The Holy Quran – Arabic Text with English Translation, Commentary and comprehensive Introduction [Year 2002 Edition] by Maulana Muhammad Ali, page 383
 The Holy Qur’an – Arabic Text With English Translation & Short Commentary  By Malik Ghulam Farid page 365